Wiseco Chevy Big Block 4.625in Bore 1.270in CH 38.00 CC Piston Set

Forged from 2618 aluminum, these Wiseco pistons are built for serious performance in Chevy Big Block engines. The 4.625 inch bore size is specific to certain Big Block applications, and the 1.270 inch compression height works with a variety of crankshaft and connecting rod combinations. Wiseco machines these pistons in the USA, ensuring precise tolerances for critical engine components.

Wiseco's Professional Series pistons are packed with features for heavy to severe duty race builds. They include precision ring grooves, anti-detonation grooves, and other features designed to improve ring seal. The ArmorGlide skirt coating helps reduce friction and resist seizure, while also contributing to quieter operation. The fully machined crown ensures consistent combustion chamber volume, and forced pin oiling keeps the wrist pin lubricated under extreme conditions.

This set includes eight pistons, designed to be a direct replacement for your stock or performance Big Block Chevy. While these are built for the most demanding applications, it's important to note they are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and break-in procedures.