SBC FT PowerPak Piston Set 4.030 Bore -5.0cc

The SBC FT PowerPak Piston Set 4.030 Bore -5.0cc from MAHLE PISTONS is designed for Small Block Chevy (SBC) engine builders and performance enthusiasts who require precision-engineered internals for high-output applications. This complete piston kit includes eight pistons, addressing the essential needs for reliable stroker or boosted builds, ensuring controlled combustion chamber volume and ring seal integrity under extreme cylinder pressures.

Featuring a 4.030-inch bore diameter with -5.0cc dish geometry, this PowerPak set optimizes compression ratios and combustion efficiency for both naturally aspirated and forced-induction platforms. The negative dome design reduces chamber volume, enabling builders to achieve higher effective compression without custom block work or head modifications. The ring groove configuration of 1.5mm / 1.5mm / 3.0mm ensures consistent ring tension, minimal blowby, and reliable oil control across the RPM range.

Engine builders, performance shops, and enthusiasts will benefit from this piston kit when rebuilding or upgrading 350, 383, and 400 SBC engines. MAHLE's PowerPak line utilizes premium aluminum alloy construction with precision-forged skirts, providing the thermal stability and dimensional consistency required for high-boost and nitrous oxide applications.