SBC Dished Piston Set 4.155 Bore -23.4cc

The SBC Dished Piston Set 4.155 Bore -23.4cc from Race Tec Pistons is designed for small-block Chevrolet engines that require optimized compression geometry and reliable high-RPM performance. This set is ideal for builders and enthusiasts who seek precision-engineered components that deliver consistent results in both naturally aspirated and moderately boosted applications.

These forged pistons feature a dished design that reduces the compression ratio while maintaining structural integrity, making them suitable for street performance, strip duty, and forced-induction setups where detonation control is essential. The pistons are constructed to provide superior strength at elevated RPM and thermal cycling compared to cast alternatives, which is critical for engines that routinely exceed 6,500 RPM or operate under aggressive boost levels.

Engine builders working on carbureted or EFI small-block Chevrolets—whether 350, 383, or stroker variants—will find these pistons compatible with standard 4.155-inch bore blocks. The precision ring grooves and skirt design minimize friction and ensure proper ring sealing across the entire power band, allowing builders to run pump gas without sacrificing reliability or performance.