GM LS Piston Set 4.010 Bore -19.7cc

The GM LS Piston Set 4.010 Bore -19.7cc from Race Tec Pistons is designed for serious LS engine builders who require high-performance internal components. This piston set is suitable for both naturally aspirated and boosted LS builds, making it ideal for a range of applications from street engines to competition setups.

Manufactured from premium forged aluminum, these pistons provide a superior strength-to-weight ratio compared to cast alternatives. The 4.010-inch bore diameter is standard for LS platform engines, ensuring compatibility with OEM and aftermarket LS blocks. The -19.7cc dish volume is engineered to optimize compression ratios when paired with common LS cylinder heads, balancing power output and detonation resistance.

Engine builders can trust this piston set for consistent reliability and performance, whether preparing a truck for daily driving or a high-performance build for the track. The set includes 8 pistons, wrist pins, and rings, making it a complete solution for LS engine assembly.