SBC PowerPak F/T Piston Set 4.155 Bore

The MAHLE PISTONS SBC PowerPak F/T Piston Set 4.155 Bore (Part No. 930200755) is a forged piston and ring kit engineered for small block Chevy engines demanding high-performance reliability. Designed with a 4.155-inch bore, 1.0 x 1.0 x 2.0 mm ring grooves, and minus 5.00 cc compression relief, this piston set delivers the precision and durability required for both street and racing applications where dependable power delivery is non-negotiable.

Forged construction provides superior strength and heat resistance compared to cast alternatives, critical for high-RPM operation and sustained load scenarios. The specific ring groove dimensions and compression relief design optimize ring sealing while managing combustion pressures efficiently. These specifications ensure reduced blow-by and consistent performance across varying engine loads—essential factors for operators maintaining engines in demanding service. The 4.155-inch bore sizing accommodates overbore configurations for small block Chevy platforms, allowing builders to maximize displacement while maintaining OEM-standard deck heights and rod ratios.

This piston set serves serious engine builders, racing teams, and enthusiasts rebuilding or upgrading small block Chevy engines for competition or high-output street duty. Whether preparing a long-block assembly, restoring a tired engine to original specifications, or stepping up displacement through overboring, MAHLE's proven metallurgy and tolerances reduce risk of premature wear or catastrophic failure. The complete kit format simplifies procurement and ensures matched ring-to-piston geometry for optimal sealing right out of the box.

MAHLE Pistons maintains strong market positioning in performance and OEM remanufacturing segments, backed by decades of precision manufacturing. For small block Chevy builders seeking verified, field-proven piston solutions, this PowerPak offering represents a direct-fit, no-compromise component that eliminates guesswork during engine assembly and validates confidence in long-term durability.