Wiseco Chevy LS 3.905in Bore 1.165in CH -9.00 CC Piston Set

What you get in this set are eight forged pistons designed for Chevrolet LS engines with a 3.905-inch bore. These pistons feature a compression height of 1.165 inches and a -9.00cc dish volume, meaning they are designed to work with specific cylinder head volumes to achieve a desired compression ratio. They come with a 0.927-inch pin diameter, ready for your connecting rods.

Wiseco builds these Professional Series pistons in the USA from 2618 aluminum, which offers improved tensile strength for demanding applications. They've been fully machined, including the crown, and feature precision ring grooves, anti-detonation grooves, and other features to improve ring seal. The pistons also come with an ArmorGlide skirt coating, which helps reduce friction, resist seizure, and operate more quietly. These are intended for heavy to severe duty race builds where durability and performance under extreme stress are critical.

For builders focused on high-performance LS engines, these pistons are a solid choice. They are designed to withstand significant abuse and are a key component for anyone serious about racing or extreme street performance. Keep in mind these are not CARB approved and cannot be shipped to California. You'll want to confirm compatibility with your specific cylinder heads and connecting rods to ensure proper assembly and desired engine performance.