{"title":"ARP Bolts","description":"","products":[{"product_id":"arp-head-stud-kit-ford-fiesta-st-mk7-1-6-ecoboost","title":"ARP Head Stud Kit - Ford Fiesta ST Mk7 1.6 EcoBoost","description":"\u003cp\u003eIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated, there’s not a better stud setup on the market today.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFor openers, ARP only uses premium grade 8740 alloy and a proprietary ARP2000® alloy that are rated far superior to “aircraft” quality alloy steels. Secondly, each stud is\u003cbr data-mce-fragment=\"1\"\u003eplaced vertically into special racks and precisely heat-treated to 190,000 psi for the 8740 material and 220,000 psi for the ARP2000® material. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFollowing heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible. It’s important to note that lesser quality studs are not even centerless ground – the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned – something that won’t happen with inferior quality head studs.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eARP studs are thread rolled after heat-treat, which gives them about 2000% (that’s twenty times) better fatigue strength than those studs that are threaded prior to heat-treat. It costs a lot more to do it this way, because it’s tough on tooling, but the results are well worth the extra effort.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eYou will also note that ARP offers specially undercut studs for several engines. This procedure more equalizes the “stretch” of both studs, which makes for a more consistent clamping force – and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing!\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":48078864744722,"sku":"251-4302","price":249.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_8921ea22-22a5-4790-90f2-e82809b0bc43.jpg?v=1708511383"},{"product_id":"arp-head-stud-kit-ford-focus-st-mk3-2-0-ecoboost","title":"ARP Head Stud Kit - Ford Focus ST Mk3 2.0 EcoBoost","description":"\u003cp\u003eIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated, there’s not a better stud setup on the market today.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFor openers, ARP only uses premium grade 8740 alloy and a proprietary ARP2000® alloy that are rated far superior to “aircraft” quality alloy steels. Secondly, each stud is\u003cbr data-mce-fragment=\"1\"\u003eplaced vertically into special racks and precisely heat-treated to 190,000 psi for the 8740 material and 220,000 psi for the ARP2000® material. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFollowing heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible. It’s important to note that lesser quality studs are not even centerless ground – the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned – something that won’t happen with inferior quality head studs.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eARP studs are thread rolled after heat-treat, which gives them about 2000% (that’s twenty times) better fatigue strength than those studs that are threaded prior to heat-treat. It costs a lot more to do it this way, because it’s tough on tooling, but the results are well worth the extra effort.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eYou will also note that ARP offers specially undercut studs for several engines. This procedure more equalizes the “stretch” of both studs, which makes for a more consistent clamping force – and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing!\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":48078992015634,"sku":"151-4301","price":249.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_1f57d84c-403c-4713-a920-ff71319386e0.jpg?v=1708511903"},{"product_id":"arp-head-stud-kit-ford-focus-rs-mk3-2-3-ecoboost","title":"ARP Head Stud Kit - Ford Focus RS Mk3 2.3 EcoBoost","description":"\u003cp\u003eIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated, there’s not a better stud setup on the market today.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFor openers, ARP only uses premium grade 8740 alloy and a proprietary ARP2000® alloy that are rated far superior to “aircraft” quality alloy steels. Secondly, each stud is\u003cbr data-mce-fragment=\"1\"\u003eplaced vertically into special racks and precisely heat-treated to 190,000 psi for the 8740 material and 220,000 psi for the ARP2000® material. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFollowing heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible. It’s important to note that lesser quality studs are not even centerless ground – the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned – something that won’t happen with inferior quality head studs.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eARP studs are thread rolled after heat-treat, which gives them about 2000% (that’s twenty times) better fatigue strength than those studs that are threaded prior to heat-treat. It costs a lot more to do it this way, because it’s tough on tooling, but the results are well worth the extra effort.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eYou will also note that ARP offers specially undercut studs for several engines. This procedure more equalizes the “stretch” of both studs, which makes for a more consistent clamping force – and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing!\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":48079009939730,"sku":"151-4301","price":249.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_a581d84c-80db-4e49-b7b4-cee216811338.jpg?v=1708512107"},{"product_id":"arp-head-stud-kit-ford-focus-st-and-rs-mk2-2-5-duratec","title":"ARP Head Stud Kit - Ford Focus ST and RS Mk2 2.5 Duratec","description":"\u003cp\u003eIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated, there’s not a better stud setup on the market today.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFor openers, ARP only uses premium grade 8740 alloy and a proprietary ARP2000® alloy that are rated far superior to “aircraft” quality alloy steels. Secondly, each stud is\u003cbr data-mce-fragment=\"1\"\u003eplaced vertically into special racks and precisely heat-treated to 190,000 psi for the 8740 material and 220,000 psi for the ARP2000® material. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFollowing heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible. It’s important to note that lesser quality studs are not even centerless ground – the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned – something that won’t happen with inferior quality head studs.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eARP studs are thread rolled after heat-treat, which gives them about 2000% (that’s twenty times) better fatigue strength than those studs that are threaded prior to heat-treat. It costs a lot more to do it this way, because it’s tough on tooling, but the results are well worth the extra effort.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eYou will also note that ARP offers specially undercut studs for several engines. This procedure more equalizes the “stretch” of both studs, which makes for a more consistent clamping force – and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing!\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":48079016558866,"sku":"251-4703","price":399.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_86a731a8-1966-4819-938f-87531a1937e9.jpg?v=1708512163"},{"product_id":"arp-head-stud-kit-mini-cooper-s-r56-n14-n18","title":"ARP Head Stud Kit - MINI Cooper S R56 N14\/N18","description":"\u003cp\u003eIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated, there’s not a better stud setup on the market today.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFor openers, ARP only uses premium grade 8740 alloy and a proprietary ARP2000® alloy that are rated far superior to “aircraft” quality alloy steels. Secondly, each stud is\u003cbr data-mce-fragment=\"1\"\u003eplaced vertically into special racks and precisely heat-treated to 190,000 psi for the 8740 material and 220,000 psi for the ARP2000® material. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFollowing heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible. It’s important to note that lesser quality studs are not even centerless ground – the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned – something that won’t happen with inferior quality head studs.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eARP studs are thread rolled after heat-treat, which gives them about 2000% (that’s twenty times) better fatigue strength than those studs that are threaded prior to heat-treat. It costs a lot more to do it this way, because it’s tough on tooling, but the results are well worth the extra effort.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eYou will also note that ARP offers specially undercut studs for several engines. This procedure more equalizes the “stretch” of both studs, which makes for a more consistent clamping force – and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing!\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":48079062532370,"sku":"201-4304","price":289.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_203fe47d-11e4-47fa-97ab-dbdbbbc9ea95.jpg?v=1708512500"},{"product_id":"arp-head-stud-kit-toyota-gr-supra-b58","title":"ARP Head Stud Kit - Toyota GR Supra B58","description":"\u003cp\u003eIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated, there’s not a better stud setup on the market today.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFor openers, ARP only uses premium grade 8740 alloy and a proprietary ARP2000® alloy that are rated far superior to “aircraft” quality alloy steels. Secondly, each stud is\u003cbr data-mce-fragment=\"1\"\u003eplaced vertically into special racks and precisely heat-treated to 190,000 psi for the 8740 material and 220,000 psi for the ARP2000® material. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFollowing heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible. It’s important to note that lesser quality studs are not even centerless ground – the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned – something that won’t happen with inferior quality head studs.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eARP studs are thread rolled after heat-treat, which gives them about 2000% (that’s twenty times) better fatigue strength than those studs that are threaded prior to heat-treat. It costs a lot more to do it this way, because it’s tough on tooling, but the results are well worth the extra effort.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eYou will also note that ARP offers specially undercut studs for several engines. This procedure more equalizes the “stretch” of both studs, which makes for a more consistent clamping force – and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing!\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":48079112601874,"sku":"201-4701","price":449.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_5c4c53c6-3e9d-4ddd-93bb-62998dfbf12c.jpg?v=1708512856"},{"product_id":"arp-head-stud-kit-toyota-gt86-fa20","title":"ARP Head Stud Kit - Toyota GT86 FA20","description":"\u003cp\u003eIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated, there’s not a better stud setup on the market today.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFor openers, ARP only uses premium grade 8740 alloy and a proprietary ARP2000® alloy that are rated far superior to “aircraft” quality alloy steels. Secondly, each stud is\u003cbr data-mce-fragment=\"1\"\u003eplaced vertically into special racks and precisely heat-treated to 190,000 psi for the 8740 material and 220,000 psi for the ARP2000® material. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFollowing heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible. It’s important to note that lesser quality studs are not even centerless ground – the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned – something that won’t happen with inferior quality head studs.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eARP studs are thread rolled after heat-treat, which gives them about 2000% (that’s twenty times) better fatigue strength than those studs that are threaded prior to heat-treat. It costs a lot more to do it this way, because it’s tough on tooling, but the results are well worth the extra effort.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eYou will also note that ARP offers specially undercut studs for several engines. This procedure more equalizes the “stretch” of both studs, which makes for a more consistent clamping force – and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing!\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":48079151563026,"sku":"203-4305","price":399.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_356c2c7a-41d9-4d21-a15d-8e74b9594548.jpg?v=1708513052"},{"product_id":"arp-head-stud-kit-vw-scirocco-r-ea113","title":"ARP Head Stud Kit - VW Scirocco R EA113","description":"\u003cp\u003eIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated, there’s not a better stud setup on the market today.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFor openers, ARP only uses premium grade 8740 alloy and a proprietary ARP2000® alloy that are rated far superior to “aircraft” quality alloy steels. Secondly, each stud is\u003cbr data-mce-fragment=\"1\"\u003eplaced vertically into special racks and precisely heat-treated to 190,000 psi for the 8740 material and 220,000 psi for the ARP2000® material. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFollowing heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible. It’s important to note that lesser quality studs are not even centerless ground – the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned – something that won’t happen with inferior quality head studs.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eARP studs are thread rolled after heat-treat, which gives them about 2000% (that’s twenty times) better fatigue strength than those studs that are threaded prior to heat-treat. It costs a lot more to do it this way, because it’s tough on tooling, but the results are well worth the extra effort.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eYou will also note that ARP offers specially undercut studs for several engines. This procedure more equalizes the “stretch” of both studs, which makes for a more consistent clamping force – and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing!\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":48079193604370,"sku":"204-4302","price":229.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_99e25d0c-4143-48bc-b10c-b61c5aec8e66.jpg?v=1708513256"},{"product_id":"arp-head-stud-kit-audi-tts-8j-ea113","title":"ARP Head Stud Kit - Audi TTS 8J EA113","description":"\u003cp\u003eIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated, there’s not a better stud setup on the market today.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFor openers, ARP only uses premium grade 8740 alloy and a proprietary ARP2000® alloy that are rated far superior to “aircraft” quality alloy steels. Secondly, each stud is\u003cbr data-mce-fragment=\"1\"\u003eplaced vertically into special racks and precisely heat-treated to 190,000 psi for the 8740 material and 220,000 psi for the ARP2000® material. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFollowing heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible. It’s important to note that lesser quality studs are not even centerless ground – the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned – something that won’t happen with inferior quality head studs.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eARP studs are thread rolled after heat-treat, which gives them about 2000% (that’s twenty times) better fatigue strength than those studs that are threaded prior to heat-treat. It costs a lot more to do it this way, because it’s tough on tooling, but the results are well worth the extra effort.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eYou will also note that ARP offers specially undercut studs for several engines. This procedure more equalizes the “stretch” of both studs, which makes for a more consistent clamping force – and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing!\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":48079201632530,"sku":"204-4302","price":229.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_fba6a01f-484b-4747-93e8-ce2c191d4cfe.jpg?v=1708513305"},{"product_id":"arp-head-stud-kit-audi-ttrs-8j-ea855","title":"ARP Head Stud Kit - Audi TTRS 8J EA855","description":"\u003cp\u003eIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated, there’s not a better stud setup on the market today.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFor openers, ARP only uses premium grade 8740 alloy and a proprietary ARP2000® alloy that are rated far superior to “aircraft” quality alloy steels. Secondly, each stud is\u003cbr data-mce-fragment=\"1\"\u003eplaced vertically into special racks and precisely heat-treated to 190,000 psi for the 8740 material and 220,000 psi for the ARP2000® material. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFollowing heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible. It’s important to note that lesser quality studs are not even centerless ground – the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned – something that won’t happen with inferior quality head studs.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eARP studs are thread rolled after heat-treat, which gives them about 2000% (that’s twenty times) better fatigue strength than those studs that are threaded prior to heat-treat. It costs a lot more to do it this way, because it’s tough on tooling, but the results are well worth the extra effort.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eYou will also note that ARP offers specially undercut studs for several engines. This procedure more equalizes the “stretch” of both studs, which makes for a more consistent clamping force – and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing!\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":48079265792274,"sku":"204-4708","price":399.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_d6d4e422-02c9-4a7e-a056-bbe9c91acdd0.jpg?v=1708513634"},{"product_id":"arp-head-stud-kit-audi-rs3-8v-and-ttrs-8s-ea855","title":"ARP Head Stud Kit - Audi RS3 8V EA855","description":"\u003cp\u003eIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated, there’s not a better stud setup on the market today.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFor openers, ARP only uses premium grade 8740 alloy and a proprietary ARP2000® alloy that are rated far superior to “aircraft” quality alloy steels. Secondly, each stud is\u003cbr data-mce-fragment=\"1\"\u003eplaced vertically into special racks and precisely heat-treated to 190,000 psi for the 8740 material and 220,000 psi for the ARP2000® material. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFollowing heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible. It’s important to note that lesser quality studs are not even centerless ground – the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned – something that won’t happen with inferior quality head studs.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eARP studs are thread rolled after heat-treat, which gives them about 2000% (that’s twenty times) better fatigue strength than those studs that are threaded prior to heat-treat. It costs a lot more to do it this way, because it’s tough on tooling, but the results are well worth the extra effort.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eYou will also note that ARP offers specially undercut studs for several engines. This procedure more equalizes the “stretch” of both studs, which makes for a more consistent clamping force – and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing!\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":48079291711762,"sku":"204-4708","price":399.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_913387c6-52b6-4057-837d-33aca9d5ed29.jpg?v=1708513820"},{"product_id":"arp-head-stud-kit-bmw-m140i-and-m240i-f20-f22-b58","title":"ARP Head Stud Kit - BMW M140i and M240i F20\/F22 B58","description":"\u003cp\u003eIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated, there’s not a better stud setup on the market today.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFor openers, ARP only uses premium grade 8740 alloy and a proprietary ARP2000® alloy that are rated far superior to “aircraft” quality alloy steels. Secondly, each stud is\u003cbr data-mce-fragment=\"1\"\u003eplaced vertically into special racks and precisely heat-treated to 190,000 psi for the 8740 material and 220,000 psi for the ARP2000® material. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFollowing heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible. It’s important to note that lesser quality studs are not even centerless ground – the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned – something that won’t happen with inferior quality head studs.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eARP studs are thread rolled after heat-treat, which gives them about 2000% (that’s twenty times) better fatigue strength than those studs that are threaded prior to heat-treat. It costs a lot more to do it this way, because it’s tough on tooling, but the results are well worth the extra effort.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eYou will also note that ARP offers specially undercut studs for several engines. This procedure more equalizes the “stretch” of both studs, which makes for a more consistent clamping force – and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing!\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":48079318581522,"sku":"201-4701","price":449.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_5c199bc8-7eb6-4daa-8df3-52a31c9c8bc3.jpg?v=1708513992"},{"product_id":"arp-head-stud-kit-bmw-m240i-g42-b58","title":"ARP Head Stud Kit - BMW M240i G42 and Z4 M40i G29 B58","description":"\u003cp\u003eIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated, there’s not a better stud setup on the market today.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFor openers, ARP only uses premium grade 8740 alloy and a proprietary ARP2000® alloy that are rated far superior to “aircraft” quality alloy steels. Secondly, each stud is\u003cbr data-mce-fragment=\"1\"\u003eplaced vertically into special racks and precisely heat-treated to 190,000 psi for the 8740 material and 220,000 psi for the ARP2000® material. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFollowing heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible. It’s important to note that lesser quality studs are not even centerless ground – the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned – something that won’t happen with inferior quality head studs.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eARP studs are thread rolled after heat-treat, which gives them about 2000% (that’s twenty times) better fatigue strength than those studs that are threaded prior to heat-treat. It costs a lot more to do it this way, because it’s tough on tooling, but the results are well worth the extra effort.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eYou will also note that ARP offers specially undercut studs for several engines. This procedure more equalizes the “stretch” of both studs, which makes for a more consistent clamping force – and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing!\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":48079350169874,"sku":"201-4701","price":449.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_a4118731-d76c-40b7-b298-5ff6d5674f16.jpg?v=1708514032"},{"product_id":"arp-head-stud-kit-bmw-m240i-g42-b58-1","title":"ARP Main Stud Kit - BMW M240i G42 and Z4 M40i G29 B58","description":"\u003cp\u003eThere are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel-ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place.\u003c\/p\u003e\n\u003cp\u003eThe studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 190,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 2000% stronger than others.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSTUDS vs. BOLTS\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eARP recommends the use of main studs over bolts whenever possible for several key reasons. First is the ability to obtain more accurate torque readings because studs don’t “twist” into the block. All clamping forces are on one axis. By the same token, there is less force exerted on the block threads, which contributes to improved block life (very critical on aluminum blocks). Finally, there are factors of easier engine assembly and proper alignment of caps every time.\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":48079361212690,"sku":"201-5402","price":299.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_cf89f078-9636-4bf9-8f92-1a468b2572bc.jpg?v=1708514113"},{"product_id":"arp-main-stud-kit-bmw-m140i-and-m240i-f20-f22-b58","title":"ARP Main Stud Kit - BMW M140i and M240i F20\/F22 B58","description":"\u003cp\u003eThere are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel-ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place.\u003c\/p\u003e\n\u003cp\u003eThe studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 190,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 2000% stronger than others.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSTUDS vs. BOLTS\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eARP recommends the use of main studs over bolts whenever possible for several key reasons. First is the ability to obtain more accurate torque readings because studs don’t “twist” into the block. All clamping forces are on one axis. By the same token, there is less force exerted on the block threads, which contributes to improved block life (very critical on aluminum blocks). Finally, there are factors of easier engine assembly and proper alignment of caps every time.\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":48079369634066,"sku":"201-5402","price":299.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_669a1ad0-13e8-43b8-ac98-7efb97766d10.jpg?v=1708514255"},{"product_id":"arp-main-stud-kit-toyota-gr-supra-b58","title":"ARP Main Stud Kit - Toyota GR Supra B58","description":"\u003cp\u003eThere are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel-ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place.\u003c\/p\u003e\n\u003cp\u003eThe studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 190,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 2000% stronger than others.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSTUDS vs. BOLTS\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eARP recommends the use of main studs over bolts whenever possible for several key reasons. First is the ability to obtain more accurate torque readings because studs don’t “twist” into the block. All clamping forces are on one axis. By the same token, there is less force exerted on the block threads, which contributes to improved block life (very critical on aluminum blocks). Finally, there are factors of easier engine assembly and proper alignment of caps every time.\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":48079391129874,"sku":"201-5402","price":299.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_25263c03-4cea-45f1-8c14-4893601be8e9.jpg?v=1708514296"},{"product_id":"arp-main-stud-kit-audi-tts-8j-ea113","title":"ARP Main Stud Kit - Audi TTS 8J EA113","description":"\u003cp\u003eThere are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel-ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place.\u003c\/p\u003e\n\u003cp\u003eThe studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 190,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 2000% stronger than others.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSTUDS vs. BOLTS\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eARP recommends the use of main studs over bolts whenever possible for several key reasons. First is the ability to obtain more accurate torque readings because studs don’t “twist” into the block. All clamping forces are on one axis. By the same token, there is less force exerted on the block threads, which contributes to improved block life (very critical on aluminum blocks). Finally, there are factors of easier engine assembly and proper alignment of caps every time.\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":48079479472402,"sku":"204-5408","price":199.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_e317b9ed-e03f-483e-82e2-67935fc7ec7a.jpg?v=1708514757"},{"product_id":"arp-main-stud-kit-vw-scirocco-r-ea113","title":"ARP Main Stud Kit - VW Scirocco R EA113","description":"\u003cp\u003eThere are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel-ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place.\u003c\/p\u003e\n\u003cp\u003eThe studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 190,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 2000% stronger than others.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSTUDS vs. BOLTS\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eARP recommends the use of main studs over bolts whenever possible for several key reasons. First is the ability to obtain more accurate torque readings because studs don’t “twist” into the block. All clamping forces are on one axis. By the same token, there is less force exerted on the block threads, which contributes to improved block life (very critical on aluminum blocks). Finally, there are factors of easier engine assembly and proper alignment of caps every time.\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":48079489597714,"sku":"204-5408","price":199.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_ec581045-3734-4f29-b903-72400c805d73.jpg?v=1708514807"},{"product_id":"arp-main-stud-kit-ford-fiesta-st-mk7-1-6-ecoboost","title":"ARP Main Stud Kit - Ford Fiesta ST Mk7 1.6 EcoBoost","description":"\u003cp\u003eThere are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel-ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place.\u003c\/p\u003e\n\u003cp\u003eThe studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 190,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 2000% stronger than others.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSTUDS vs. BOLTS\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eARP recommends the use of main studs over bolts whenever possible for several key reasons. First is the ability to obtain more accurate torque readings because studs don’t “twist” into the block. All clamping forces are on one axis. By the same token, there is less force exerted on the block threads, which contributes to improved block life (very critical on aluminum blocks). Finally, there are factors of easier engine assembly and proper alignment of caps every time.\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":48079547662610,"sku":"251-5002","price":129.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_7469ebd2-d225-4d93-9513-3caa17d111be.jpg?v=1708515030"},{"product_id":"arp-main-stud-kit-ford-focus-st-mk3-2-0-ecoboost","title":"ARP Main Stud Kit - Ford Focus ST Mk3 2.0 EcoBoost","description":"\u003cp\u003eThere are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel-ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place.\u003c\/p\u003e\n\u003cp\u003eThe studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 190,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 2000% stronger than others.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSTUDS vs. BOLTS\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eARP recommends the use of main studs over bolts whenever possible for several key reasons. First is the ability to obtain more accurate torque readings because studs don’t “twist” into the block. All clamping forces are on one axis. By the same token, there is less force exerted on the block threads, which contributes to improved block life (very critical on aluminum blocks). Finally, there are factors of easier engine assembly and proper alignment of caps every time.\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":48079639249170,"sku":"151-5407","price":229.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_777e7a2d-4df5-4942-86aa-e724130deca7.jpg?v=1708515196"},{"product_id":"arp-main-stud-kit-ford-focus-rs-mk3-2-3-ecoboost","title":"ARP Main Stud Kit - Ford Focus RS Mk3 2.3 EcoBoost","description":"\u003cp\u003eThere are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel-ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place.\u003c\/p\u003e\n\u003cp\u003eThe studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 190,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 2000% stronger than others.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSTUDS vs. BOLTS\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eARP recommends the use of main studs over bolts whenever possible for several key reasons. First is the ability to obtain more accurate torque readings because studs don’t “twist” into the block. All clamping forces are on one axis. By the same token, there is less force exerted on the block threads, which contributes to improved block life (very critical on aluminum blocks). Finally, there are factors of easier engine assembly and proper alignment of caps every time.\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":48079868952850,"sku":"151-5407","price":229.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_19a51189-bf7c-45b1-85b8-1b92dc956afa.jpg?v=1708515563"},{"product_id":"arp-main-stud-kit-ford-focus-st-and-rs-mk2-2-5-duratec","title":"ARP Main Stud Kit - Ford Focus ST and RS Mk2 2.5 Duratec","description":"\u003cp\u003eThere are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel-ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place.\u003c\/p\u003e\n\u003cp\u003eThe studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 190,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 2000% stronger than others.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSTUDS vs. BOLTS\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eARP recommends the use of main studs over bolts whenever possible for several key reasons. First is the ability to obtain more accurate torque readings because studs don’t “twist” into the block. All clamping forces are on one axis. By the same token, there is less force exerted on the block threads, which contributes to improved block life (very critical on aluminum blocks). Finally, there are factors of easier engine assembly and proper alignment of caps every time.\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":48079895855378,"sku":"251-5801","price":499.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_6ed35338-7d9f-4199-8185-6f07ea527a5f.jpg?v=1708515605"},{"product_id":"arp-main-stud-kit-mini-cooper-s-r56-n14-n18","title":"ARP Main Stud Kit - MINI Cooper S R56 N14\/N18","description":"\u003cp\u003eThere are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel-ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place.\u003c\/p\u003e\n\u003cp\u003eThe studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 190,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 2000% stronger than others.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSTUDS vs. BOLTS\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eARP recommends the use of main studs over bolts whenever possible for several key reasons. First is the ability to obtain more accurate torque readings because studs don’t “twist” into the block. All clamping forces are on one axis. By the same token, there is less force exerted on the block threads, which contributes to improved block life (very critical on aluminum blocks). Finally, there are factors of easier engine assembly and proper alignment of caps every time.\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":48080099737874,"sku":"201-5401","price":335.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_ec6bc726-bfca-4e45-9022-77b38828eac1.jpg?v=1708515953"},{"product_id":"arp-main-stud-kit-toyota-gt86-fa20","title":"ARP Main Stud Kit - Toyota GT86 FA20","description":"\u003cp\u003eThere are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel-ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place.\u003c\/p\u003e\n\u003cp\u003eThe studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 190,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 2000% stronger than others.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSTUDS vs. BOLTS\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eARP recommends the use of main studs over bolts whenever possible for several key reasons. First is the ability to obtain more accurate torque readings because studs don’t “twist” into the block. All clamping forces are on one axis. By the same token, there is less force exerted on the block threads, which contributes to improved block life (very critical on aluminum blocks). Finally, there are factors of easier engine assembly and proper alignment of caps every time.\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":48080398975250,"sku":"203-5002","price":639.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_14c59534-9b93-4385-85af-379a6ca13b22.jpg?v=1708516414"},{"product_id":"arp-head-stud-kit-bmw-m135i-and-m235i-f40-f44-b48","title":"ARP Head Stud Kit - BMW M135i and M235i F40\/F44 B48","description":"\u003cp\u003eIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated, there’s not a better stud setup on the market today.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFor openers, ARP only uses premium grade 8740 alloy and a proprietary ARP2000® alloy that are rated far superior to “aircraft” quality alloy steels. Secondly, each stud is\u003cbr data-mce-fragment=\"1\"\u003eplaced vertically into special racks and precisely heat-treated to 190,000 psi for the 8740 material and 220,000 psi for the ARP2000® material. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFollowing heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible. It’s important to note that lesser quality studs are not even centerless ground – the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned – something that won’t happen with inferior quality head studs.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eARP studs are thread rolled after heat-treat, which gives them about 2000% (that’s twenty times) better fatigue strength than those studs that are threaded prior to heat-treat. It costs a lot more to do it this way, because it’s tough on tooling, but the results are well worth the extra effort.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eYou will also note that ARP offers specially undercut studs for several engines. This procedure more equalizes the “stretch” of both studs, which makes for a more consistent clamping force – and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing!\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":54955058889091,"sku":"201-4704","price":315.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_5c199bc8-7eb6-4daa-8df3-52a31c9c8bc3.jpg?v=1708513992"},{"product_id":"arp-head-stud-kit-mini-cooper-s-f56-f66-b48","title":"ARP Head Stud Kit - MINI Cooper S F56\/F66 B48","description":"\u003cp\u003eIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated, there’s not a better stud setup on the market today.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFor openers, ARP only uses premium grade 8740 alloy and a proprietary ARP2000® alloy that are rated far superior to “aircraft” quality alloy steels. Secondly, each stud is\u003cbr data-mce-fragment=\"1\"\u003eplaced vertically into special racks and precisely heat-treated to 190,000 psi for the 8740 material and 220,000 psi for the ARP2000® material. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFollowing heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible. It’s important to note that lesser quality studs are not even centerless ground – the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned – something that won’t happen with inferior quality head studs.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eARP studs are thread rolled after heat-treat, which gives them about 2000% (that’s twenty times) better fatigue strength than those studs that are threaded prior to heat-treat. It costs a lot more to do it this way, because it’s tough on tooling, but the results are well worth the extra effort.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eYou will also note that ARP offers specially undercut studs for several engines. This procedure more equalizes the “stretch” of both studs, which makes for a more consistent clamping force – and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing!\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":54955072061827,"sku":"201-4704","price":315.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_5c199bc8-7eb6-4daa-8df3-52a31c9c8bc3.jpg?v=1708513992"},{"product_id":"arp-main-stud-kit-bmw-m135i-and-m235i-f40-f44-b48","title":"ARP Main Stud Kit - BMW M135i and M235i F40\/F44 B48","description":"\u003cp\u003eThere are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel-ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place.\u003c\/p\u003e\n\u003cp\u003eThe studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 190,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 2000% stronger than others.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSTUDS vs. BOLTS\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eARP recommends the use of main studs over bolts whenever possible for several key reasons. First is the ability to obtain more accurate torque readings because studs don’t “twist” into the block. All clamping forces are on one axis. By the same token, there is less force exerted on the block threads, which contributes to improved block life (very critical on aluminum blocks). Finally, there are factors of easier engine assembly and proper alignment of caps every time.\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":54955083432323,"sku":"201-5404","price":186.71,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_669a1ad0-13e8-43b8-ac98-7efb97766d10.jpg?v=1708514255"},{"product_id":"arp-main-stud-kit-mini-cooper-s-f56-f66-b48","title":"ARP Main Stud Kit - MINI Cooper S F56\/F66 B48","description":"\u003cp\u003eThere are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel-ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place.\u003c\/p\u003e\n\u003cp\u003eThe studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 190,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 2000% stronger than others.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSTUDS vs. BOLTS\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eARP recommends the use of main studs over bolts whenever possible for several key reasons. First is the ability to obtain more accurate torque readings because studs don’t “twist” into the block. All clamping forces are on one axis. By the same token, there is less force exerted on the block threads, which contributes to improved block life (very critical on aluminum blocks). Finally, there are factors of easier engine assembly and proper alignment of caps every time.\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":54955099259267,"sku":"201-5404","price":186.71,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_669a1ad0-13e8-43b8-ac98-7efb97766d10.jpg?v=1708514255"},{"product_id":"arp-head-stud-kit-vw-golf-gti-r-ea888","title":"ARP Head Stud Kit - VW Golf GTI\/R Mk7 EA888","description":"\u003cp\u003eIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated, there’s not a better stud setup on the market today.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFor openers, ARP only uses premium grade 8740 alloy and a proprietary ARP2000® alloy that are rated far superior to “aircraft” quality alloy steels. Secondly, each stud is\u003cbr data-mce-fragment=\"1\"\u003eplaced vertically into special racks and precisely heat-treated to 190,000 psi for the 8740 material and 220,000 psi for the ARP2000® material. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFollowing heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible. It’s important to note that lesser quality studs are not even centerless ground – the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned – something that won’t happen with inferior quality head studs.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eARP studs are thread rolled after heat-treat, which gives them about 2000% (that’s twenty times) better fatigue strength than those studs that are threaded prior to heat-treat. It costs a lot more to do it this way, because it’s tough on tooling, but the results are well worth the extra effort.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eYou will also note that ARP offers specially undercut studs for several engines. This procedure more equalizes the “stretch” of both studs, which makes for a more consistent clamping force – and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing!\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":55136498844035,"sku":"204-4302","price":229.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_99e25d0c-4143-48bc-b10c-b61c5aec8e66.jpg?v=1708513256"},{"product_id":"arp-head-stud-kit-audi-s3-8v-tts-8s-ea888","title":"ARP Head Stud Kit - Audi S1 8X\/S3 8V\/TTS 8S EA888","description":"\u003cp\u003eIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated, there’s not a better stud setup on the market today.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFor openers, ARP only uses premium grade 8740 alloy and a proprietary ARP2000® alloy that are rated far superior to “aircraft” quality alloy steels. Secondly, each stud is\u003cbr data-mce-fragment=\"1\"\u003eplaced vertically into special racks and precisely heat-treated to 190,000 psi for the 8740 material and 220,000 psi for the ARP2000® material. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFollowing heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible. It’s important to note that lesser quality studs are not even centerless ground – the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned – something that won’t happen with inferior quality head studs.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eARP studs are thread rolled after heat-treat, which gives them about 2000% (that’s twenty times) better fatigue strength than those studs that are threaded prior to heat-treat. It costs a lot more to do it this way, because it’s tough on tooling, but the results are well worth the extra effort.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eYou will also note that ARP offers specially undercut studs for several engines. This procedure more equalizes the “stretch” of both studs, which makes for a more consistent clamping force – and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing!\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":55136507724163,"sku":"204-4302","price":229.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_99e25d0c-4143-48bc-b10c-b61c5aec8e66.jpg?v=1708513256"},{"product_id":"arp-head-stud-kit-renault-clio-197-200-and-megane-250-265-275-f4r-f4rt","title":"ARP Head Stud Kit - Renault Clio 197\/200 and Megane 250\/265\/275 F4R\/F4RT","description":"\u003cp\u003eIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated, there’s not a better stud setup on the market today.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFor openers, ARP only uses premium grade 8740 alloy and a proprietary ARP2000® alloy that are rated far superior to “aircraft” quality alloy steels. Secondly, each stud is\u003cbr data-mce-fragment=\"1\"\u003eplaced vertically into special racks and precisely heat-treated to 190,000 psi for the 8740 material and 220,000 psi for the ARP2000® material. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eFollowing heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible. It’s important to note that lesser quality studs are not even centerless ground – the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned – something that won’t happen with inferior quality head studs.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eARP studs are thread rolled after heat-treat, which gives them about 2000% (that’s twenty times) better fatigue strength than those studs that are threaded prior to heat-treat. It costs a lot more to do it this way, because it’s tough on tooling, but the results are well worth the extra effort.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eYou will also note that ARP offers specially undercut studs for several engines. This procedure more equalizes the “stretch” of both studs, which makes for a more consistent clamping force – and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing!\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":57412719182211,"sku":"216-4301","price":269.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_99e25d0c-4143-48bc-b10c-b61c5aec8e66.jpg?v=1708513256"},{"product_id":"arp-main-stud-kit-renault-clio-197-200-and-megane-250-265-275-f4r-f4rt","title":"ARP Main Stud Kit - Renault Clio 197\/200 and Megane 250\/265\/275 F4R\/F4RT","description":"\u003cp\u003eThere are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel-ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place.\u003c\/p\u003e\n\u003cp\u003eThe studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 190,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 2000% stronger than others.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSTUDS vs. BOLTS\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eARP recommends the use of main studs over bolts whenever possible for several key reasons. First is the ability to obtain more accurate torque readings because studs don’t “twist” into the block. All clamping forces are on one axis. By the same token, there is less force exerted on the block threads, which contributes to improved block life (very critical on aluminum blocks). Finally, there are factors of easier engine assembly and proper alignment of caps every time.\u003c\/p\u003e","brand":"ARP Bolts","offers":[{"title":"Default Title","offer_id":57412727472515,"sku":"216-5401","price":179.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/files\/eng_pl_ARP-208-4306-head-stud-kit-for-Honda-B20B-with-B16A-VTEC-head-2079_1_2048x2048_669a1ad0-13e8-43b8-ac98-7efb97766d10.jpg?v=1708514255"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6684\/4690\/collections\/ARP.jpg?v=1753448772","url":"https:\/\/jxlperformance.co.uk\/ja\/collections\/arp-bolts.oembed","provider":"JXL Performance","version":"1.0","type":"link"}