Wiseco Chevy Big Block 4.530in Bore 1.120in CH 42.00 CC Piston Set

If you're building a high-performance Chevrolet Big Block engine for serious racing or severe duty applications, this Wiseco Professional Series piston set is a solid choice. These pistons are specifically made for a 4.530-inch bore and feature a 1.120-inch compression height with a 42.00 CC combustion chamber volume. They are designed to handle the extreme stresses of racing, offering a significant step up from stock components.

Wiseco forges and machines these pistons in the USA from 2618 aluminum, a material chosen for its improved tensile strength under high temperatures and pressures. You'll find precision ring grooves, an anti-detonation groove, and other features aimed at improving ring seal for better combustion efficiency and power. The pistons also come with an ArmorGlide skirt coating, which helps reduce friction, resist seizure, and operate more quietly. The fully machined crown ensures accuracy, and forced pin oiling helps keep the wrist pins lubricated under demanding conditions.

This set includes eight pistons, the wrist pins, and rings, ready for installation in your performance Big Block build. Please note that these pistons are not CARB approved and cannot be shipped to California.