SBC Domed Piston Set 4.040 Bore +0.5cc

The SBC Domed Piston Set 4.040 Bore +0.5cc from KB Performance Pistons is designed for small-block Chevrolet builders aiming for enhanced compression ratios and improved combustion efficiency. This four-piston set is ideal for high-performance street and competition engines, allowing builders to maximize power output while ensuring reliability.

Manufactured with precision-forged construction, these pistons are built to withstand the extreme pressures and temperatures associated with high-RPM operation. The 4.040-inch bore size is compatible with various small-block Chevy applications, and the +0.5cc dome volume significantly enhances effective compression, especially when used with ported cylinder heads and aggressive cam profiles.

This piston set is particularly beneficial for builders upgrading from stock cast units or refreshing older engines with modern performance internals. The design optimizes flame propagation and minimizes quench zones, leading to cleaner combustion and measurable horsepower improvements across all four cylinders.