Wiseco Chevy LS 4.165in Bore 1.165in CH -12.00 CC Piston Set

If you're building a high-performance Chevy LS engine for serious racing or heavy-duty use, a strong set of forged pistons is essential. This Wiseco Professional Series piston set is designed to handle the extreme demands of competition, offering improved tensile strength and durability thanks to its construction from 2618 aluminum. These pistons are forged and machined right here in the USA, ensuring a high level of precision and quality control.

Wiseco has packed these pistons with features to maximize performance and longevity. You'll find precision ring grooves, an anti-detonation groove, and other features that enhance ring seal, which is critical for maintaining compression and preventing blow-by under high stress. The fully machined crown ensures consistent combustion chamber volume, and the forced pin oiling system helps keep the wrist pins properly lubricated. Plus, the ArmorGlide skirt coating helps reduce friction, resist seizure, and operate more quietly, even in severe duty applications.

This set includes eight pistons, each with a 4.165-inch bore, a 1.165-inch compression height, and a 0.927-inch pin diameter. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. They are built for heavy to severe duty race builds, so if you're pushing the limits of your LS engine, this set is a solid choice.