Wiseco Chevy Small Block 4.020in Bore 1.550in CH -5.00 CC Piston Set

Forged from 2618 aluminum, these Wiseco pistons are built for the demands of serious racing and heavy-duty engine builds. The 4.020-inch bore size is a common specification for many modified Chevrolet Small Block engines, and the -5.00cc dish in the crown helps achieve a desired compression ratio when paired with specific cylinder heads and deck heights.

Wiseco's Professional Series pistons are packed with features aimed at performance and durability. They include precision ring grooves, anti-detonation grooves, and other features designed to improve ring seal. The piston crowns are fully machined, and they incorporate forced pin oiling to ensure the wrist pin receives adequate lubrication under high stress. Additionally, the ArmorGlide skirt coating helps reduce friction, resist seizure, and operate more quietly.

This set includes eight pistons, designed to withstand severe duty applications. While these pistons are built for extreme performance, it's important to note they are not CARB approved and cannot be shipped to California. For builders aiming for maximum performance and reliability in their Chevy Small Block, these Wiseco pistons offer a well-built foundation.