Wiseco Chevy LT1 4.070in Bore 1.115in CH -6.90 CC Piston Set

Forged from 2618 aluminum, these Wiseco pistons are built for serious performance in Chevy LT1 engines. The 4.070-inch bore size is a common upgrade for builders looking to increase displacement, and the -6.90cc dish volume is designed to work with specific cylinder head volumes to achieve a desired compression ratio. Wiseco's Professional Series is engineered for heavy to severe duty race applications, meaning they're constructed to handle the extreme demands of competition.

Beyond the strong aluminum construction, these pistons feature precision-machined ring grooves that are designed for improved sealing. They also incorporate an anti-detonation groove and other features to enhance ring seal, which is crucial for maintaining compression and preventing blow-by under high stress. The ArmorGlide skirt coating helps reduce friction and resist seizure, contributing to both longevity and quieter operation. The fully machined crown ensures accuracy, and forced pin oiling helps keep the wrist pin lubricated, a critical point in high-performance engines.

This set includes eight pistons, ready for your next engine build. Keep in mind that these are not CARB approved and cannot be shipped to California. For optimal results, ensure you consult with your engine builder regarding the correct cylinder head volume and gasket thickness to achieve your target compression ratio with these pistons.