Wiseco Chevy LS 4.005in Bore 1.165in CH 5.00 CC Piston Set

Forged from 2618 aluminum, these Wiseco pistons are built for serious racers and builders who demand durability in heavy to severe duty applications. The 4.005-inch bore size is specific for certain Chevrolet LS engine builds, and the 1.165-inch compression height is a key measurement for achieving the correct deck height and compression ratio in your engine assembly. Wiseco machines these pistons in the USA, ensuring precise manufacturing for critical engine components.

You'll find a host of features aimed at improving performance and longevity. The piston crown is fully machined, and the ring grooves are precision-machined to accept the included premium rings, which feature additional sealing enhancements and anti-detonation grooves. A notable feature is the ArmorGlide skirt coating, which helps reduce friction, resist seizure, and contribute to quieter operation. The design also includes forced pin oiling to ensure the wrist pin receives adequate lubrication under high stress.

This set includes eight pistons, designed to replace the factory pistons in your Chevrolet LS engine. Remember that these pistons are not CARB approved and cannot be shipped to California. If you're rebuilding a high-performance LS engine for racing or severe duty use, these Wiseco pistons are a well-built option to consider.