Wiseco Chevy Small Block 4.000in Bore 1.550in CH 12.30 CC Piston Set

This is a set of eight forged pistons from Wiseco, designed for Chevrolet Small Block engines with a 4.000-inch bore. These pistons feature a 1.550-inch compression height and a 0.927-inch pin diameter. They are built for severe duty race applications, offering a robust solution for high-performance engine builds.

Each piston is forged and machined in the USA from 2618 aluminum, a material chosen for its improved tensile strength, which is crucial for handling the stresses of racing. They come with an ArmorGlide skirt coating that helps resist seizure, reduces friction, and contributes to quieter operation. The fully machined crown includes precision ring grooves, an anti-detonation groove, and additional features designed to improve ring seal. Forced pin oiling is also incorporated to ensure proper lubrication of the wrist pin.

These pistons are intended for builders who need a well-built component capable of withstanding heavy to severe duty performance demands. Please note that this set is not CARB approved and cannot be shipped to California.