Wiseco Chevy LT1 4.065in Bore 1.115in CH -6.90 CC Piston Set

If you're rebuilding the heart of your Chevrolet LT1 engine for serious racing or heavy-duty performance, a set of Wiseco Professional Series pistons is a solid choice. These aren't just replacement parts; they're built from the ground up to handle the extreme demands of competition and severe duty applications. Wiseco starts with 2618 aluminum, a material known for its improved tensile strength, and then forges and machines it right here in the USA to ensure top-notch quality and consistency.

You'll find precision in every detail, from the accurately machined ring grooves and anti-detonation features to the additional ring seal enhancements designed to keep combustion where it belongs. Wiseco also applies their ArmorGlide skirt coating, which helps reduce friction for quieter operation and resists seizure, even under intense heat and load. The fully machined crown ensures a clean combustion chamber, and forced pin oiling keeps the wrist pins lubricated, which is critical for longevity in high-stress builds.

This set is specifically for a 4.065-inch bore with a -6.90cc dish volume and a 1.115-inch compression height, featuring a 0.927-inch pin diameter. Remember, these pistons are designed for the most demanding builds and are not CARB approved, meaning they cannot be shipped to California. For a severe duty race build, this set offers the robust construction and advanced features needed to push your LT1 engine's limits.