The 991 GT3 flat-six provides an incredibly robust foundation derived directly from Porsche motorsport, but building a dedicated competition power plant demands upgraded internal components. Strengthening the rotating assembly with Forged Pistons and Forged Connecting Rods provides the structural integrity required to withstand high cylinder pressures and sustained 9,000 rpm operation. Securing these components requires Uprated Engine Bolts (ARP) alongside low-friction Performance Bearings (Conrod & Mains). For engines aiming to maximise volumetric efficiency, Performance Camshafts optimise valve timing and lift. We also stock Misc Engine Parts, providing the required gaskets and seals for complete engine overhauls.