Wiseco Chevy Small Block 4.040in Bore 1.550in CH -5.00 CC Piston Set

Wiseco is well-known for making strong internal engine components, especially for high-performance applications. This Professional Series piston set is built for serious racers and builders who need parts that can handle extreme conditions. These pistons are designed for Chevrolet Small Block engines and feature a 4.040-inch bore size, a 1.550-inch compression height, and a -5.00cc dish volume, making them a solid choice for rebuilding or upgrading your engine's top end.

Each piston is forged and machined in the USA from 2618 aluminum, chosen for its improved tensile strength under high stress. You'll find precision ring grooves, an anti-detonation groove, and other features designed to improve ring seal, which is critical for power and efficiency. They also come with an ArmorGlide skirt coating that helps reduce friction and resist seizure, while also contributing to quieter operation. The fully machined crown ensures accuracy, and forced pin oiling helps keep the wrist pin lubricated under demanding loads. These are built to withstand heavy to severe duty performance builds, removing limits for your race engine.

This set includes eight pistons, along with premium rings. Please note that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and break-in procedures.