Wiseco Chevy Big Block 4.625in Bore 1.120in CH 48.70 CC Piston Set

Wiseco is well-known for making strong, reliable engine components, especially for high-performance applications. This Professional Series piston set is a prime example, built for serious racers and builders who demand the best for their Chevy Big Block engines. If you're putting together a heavy-duty race build or a severe duty performance engine, these pistons are designed to handle the extreme stress and heat involved.

These pistons are forged and machined right here in the USA from 2618 aluminum, a material chosen for its improved tensile strength under high loads. They feature precision ring grooves, an anti-detonation groove, and other features aimed at improving ring seal, which is critical for power and engine longevity. The crown is fully machined for accuracy, and they come with forced pin oiling to ensure the wrist pins stay well-lubricated. Plus, the ArmorGlide skirt coating helps reduce friction, resist seizure, and operate more quietly, even under intense conditions.

This set includes eight pistons, each designed for a 4.625-inch bore with a 1.120-inch compression height. They are intended for severe duty performance applications where reliability and durability are paramount. Please note that these pistons are not CARB approved and cannot be shipped to California.