Wiseco Chevy LT1 4.075in Bore 1.105in CH -6.90 CC Piston Set

If you're building a high-performance Chevy LT1 engine, this set of Wiseco forged pistons is a solid choice. These are Wiseco's Professional Series pistons, meaning they're built with a no-compromise approach for serious racing and heavy-duty applications. They're designed to handle the kind of stress that comes with severe duty builds, giving you the confidence to push your engine hard.

Each piston is forged and machined right here in the USA from 2618 aluminum, a material known for its improved tensile strength, which is crucial for pistons that will see a lot of action. Wiseco has included precision ring grooves, an anti-detonation groove, and other features to improve ring seal, helping to keep combustion gases where they belong. You'll also find an ArmorGlide skirt coating, which is designed to reduce friction and resist seizure, all while contributing to quieter operation. The fully machined crown ensures accuracy and consistency across the set.

This set includes eight pistons, each with a 4.075-inch bore, 1.105-inch compression height, and a 0.927-inch pin diameter. They also feature forced pin oiling to ensure the wrist pin stays well-lubricated under high loads. Keep in mind these are not CARB approved and cannot be shipped to California. For a serious LT1 build, these Wiseco pistons are a well-built foundation.