SBC 400 Domed Piston Set 18 Degree

The SBC 400 Domed Piston Set 18 Degree by JE Pistons is an essential component for serious small-block Chevrolet builders aiming for maximum compression and power output. This piston set is designed for high-performance street and competition engines, where every fraction of a point in compression ratio can lead to significant gains in torque and horsepower. Whether you're working on a classic muscle car, street rod, or a bracket racing platform, this piston set meets the demanding standards of professional engine builders.

Engineered with a critical 18-degree dome design, these forged pistons raise the piston crown height, enhancing the compression ratio and optimizing combustion chamber shape for efficient flame propagation. The forged construction provides superior strength compared to cast alternatives, making them ideal for high-boost, nitrous, or high-octane fuel applications. Additionally, the precision-manufactured skirt and pin boss design minimize friction and wear while maintaining the tight clearances necessary for modern ring sealing.

This piston set is specifically designed to fit the 400-cubic-inch small-block Chevrolet platform, a popular choice among builders targeting mid-5000 torque ranges. With a total of 8 pistons in the set, it provides everything needed for a complete rebuild or upgrade. Whether for street use or racing, these pistons deliver the reliability and performance characteristics that enthusiasts and professionals alike demand.