GM LS Piston Set 4.070 Bore -22.7cc

The GM LS Piston Set 4.070 Bore -22.7cc from Race Tec Pistons is designed for high-performance LS engine builds, catering to builders and enthusiasts aiming for reliability in street machines, bracket racers, or forced-induction platforms. These forged pistons are engineered to withstand extreme combustion chamber pressures, outperforming cast alternatives.

Featuring a -22.7cc dish, these pistons lower the compression ratio, making them suitable for boost applications or engines that run on premium fuel. The high-strength aluminum alloy construction, precision ring grooves, and controlled crown design enhance combustion efficiency while minimizing skirt stress under load. This design is crucial for maintaining performance across various RPM ranges.

Ideal for LS1, LS2, LS3, and LSx engine platforms, this piston set is compatible with both stock-displacement and stroker configurations. Installers should ensure proper piston-to-valve clearance for optimal performance in their builds.