Wiseco Chevy Small Block 4.155in Bore 1.000in CH -38.00 CC Piston Set

If you're rebuilding a high-performance Chevrolet Small Block engine for serious racing or heavy-duty applications, Wiseco's Professional Series forged pistons are a solid choice. These pistons are designed from the ground up to handle the extreme demands of competition, offering a significant step up in durability and performance over stock components. They are specifically made for a 4.155-inch bore and feature a 1.000-inch compression height, ensuring they work with your chosen crankshaft and connecting rods.

Wiseco crafts these pistons in the USA from 2618 aluminum, a material chosen for its improved tensile strength under high temperatures and pressures. The machining process is meticulous, resulting in precision ring grooves that ensure a tight seal, along with anti-detonation grooves and other features to enhance ring seal. You'll also find an ArmorGlide skirt coating, which helps reduce friction for quieter operation and resists seizure, a critical factor when pushing an engine to its limits. The fully machined crown is ready for your custom valve reliefs or combustion chamber design.

This set includes eight pistons, complete with forced pin oiling to keep the wrist pins properly lubricated under stress. While these pistons are built for the most demanding race builds, 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 a race engine, these Wiseco pistons are a well-built option.