Wiseco Chevy Big Block 4.320in Bore 1.395in CH 32.00 CC Piston Set

If you're building a high-performance Chevrolet Big Block engine for serious racing or heavy-duty applications, a strong set of pistons is crucial. This Wiseco Professional Series piston set is designed to handle the extreme demands of severe duty builds. Each piston is forged and machined right here in the USA from 2618 aluminum, a material chosen for its improved tensile strength under high stress and heat.

Wiseco has packed these pistons with features that matter for racing. You'll find precision ring grooves, an anti-detonation groove, and other features designed to improve ring seal, which is key for both power and engine longevity. The crown of each piston is fully machined, 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 contribute to quieter operation, even under intense conditions.

This set includes eight pistons, each with a 4.320-inch bore, a 1.395-inch compression height, and a 0.990-inch pin diameter. Keep in mind these pistons are not CARB approved and cannot be shipped to California. They are built for the most demanding applications where reliability and performance are non-negotiable.