Wiseco Chevy Big Block 4.615in Bore 1.120in CH 4.00 CC Piston Set

Forged from 2618 aluminum, these Wiseco pistons are built for serious performance in Chevy Big Block engines. The 4.615-inch bore size is specific for certain Big Block applications, and the 1.120-inch compression height is a key measurement for setting up your engine's valve timing and piston-to-head clearance. Wiseco machines these in the USA, ensuring precise tolerances for critical engine components.

These aren't just basic pistons; they're packed with features for durability and performance in heavy to severe duty race builds. You'll find precision ring grooves, an anti-detonation groove, and other features designed to improve ring seal. The crown is fully machined for accuracy, and the pistons come with forced pin oiling to keep the wrist pins lubricated under high stress. Plus, the ArmorGlide skirt coating helps reduce friction and noise while resisting seizure, which is crucial when you're pushing your engine hard.

This set includes eight pistons, ready for your next high-performance engine build. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.