Wiseco Chevy Big Block 4.625in Bore 1.170in CH 20.00 CC Piston Set

Forged from 2618 aluminum, these Wiseco pistons are built for serious racing applications where durability and performance are critical. The 4.625 inch bore size is specific to certain Chevrolet Big Block engine builds, and the 1.170 inch compression height is a key measurement for setting up your engine's valve timing and piston-to-head clearance.

Wiseco machines these pistons in the USA, incorporating features like precision ring grooves, anti-detonation grooves, and additional ring seal improvements to ensure optimal combustion and longevity under severe stress. The crown is fully machined for accuracy, and they feature forced pin oiling to keep the wrist pin lubricated. The ArmorGlide skirt coating helps reduce friction, resist seizure, and operate more quietly, all contributing to a well-built, high-performance engine component designed to withstand heavy use.

This set includes eight pistons, designed for 8-cylinder Chevrolet Big Block engines. Please note that these pistons are not CARB approved and cannot be shipped to California. It's always recommended to consult your engine builder or refer to the manufacturer's installation instructions for specific details regarding your build.