SBC FT PowerPak Piston Set 4.030 Bore -4.1cc

The SBC FT PowerPak Piston Set 4.030 Bore -4.1cc from MAHLE PISTONS is engineered for small-block Chevrolet builders seeking reliable, high-performance internal engine components. This piston set is purpose-built for forced-induction and naturally aspirated street and competition applications where durability meets power delivery. Whether you're upgrading a daily driver or building a race-ready mill, this precision-manufactured piston set delivers the strength and consistency required for serious horsepower gains and extended engine longevity.

MAHLE's FT PowerPak line combines advanced forging technology with optimized ring grooves and compression geometry to handle boost and detonation stress. The 4.030-inch bore specification fits overbored or stroked SBC platforms, allowing builders to increase displacement while maintaining structural integrity. The -4.1cc dish design reduces compression chamber volume, useful for tuning compression ratios in modified engines or accommodating larger stroke combinations. Precision-cast ring lands and reinforced skirts are engineered to withstand sustained high-RPM operation and the thermal cycling common to turbocharged and supercharged applications.

This piston set fits small-block Chevrolet engines (262–383 ci displacement ranges) and is ideal for builders upgrading from stock cast pistons to forged performance components. Installation requires proper clearance verification, ring gapping, and professional machine work for accurate bore honing and deck height setup. The 10.33 lb weight reflects the density and strength of premium forging stock, ensuring reliability in both street turbos and full-competition drag racing builds. Pair this set with quality rings, quality connecting rods, and a solid rotating assembly blueprint for maximum durability and power output.