LS1 PowerPak F/T Piston Set 3.908 Bore

The MAHLE PISTONS LS1 PowerPak F/T Piston Set 3.908 Bore is designed for serious LS engine builders and enthusiasts who are pushing the limits of forced induction in their vehicles. These pistons serve as a reliable foundation for high-output engine builds, capable of handling sustained boost pressure and aggressive timing maps.

Constructed from premium aluminum alloy, these pistons feature a 3.908-inch bore diameter that aligns with stock LS1 block specifications. They are engineered with optimized ring groove geometry and enhanced cooling galleries, ensuring effective management of combustion temperatures under forced induction stress. The PowerPak designation indicates these pistons are indeed forged, providing the strength necessary to withstand higher peak pressures and thermal cycling.

Ideal for turbocharged and supercharged LS1 builds, this complete piston set is also suitable for LS swap projects that require OEM-bore compatibility. Whether for street or strip applications, these pistons are designed to support significant power outputs, making them a valuable choice for performance enthusiasts.