Wiseco Mitsu Evo 4-9 HD2 Asymmetric Skirt Gas Ported Bore: 85.0mm Size: Std CR: 10.5 Piston *SINGLE*

Wiseco is well-known for making strong, reliable forged pistons for high-performance applications. This Professional Series piston is built for serious racers and builders working on Mitsubishi 4G63 EVO engines, specifically models 4 through 9. It's designed to handle heavy to severe duty in race builds, giving you the confidence to push your engine's limits.

This piston is machined in the USA from 2618 aluminum, which offers improved tensile strength for demanding conditions. It features precision ring grooves, an anti-detonation groove, and other features to improve ring seal. The piston crown is fully machined, and it includes forced pin oiling for better lubrication. For quieter operation and reduced friction, it also comes with an ArmorGlide skirt coating that resists seizure.

This is a single piston, so be sure to order the correct quantity for your engine. Please note that this part is not CARB approved and cannot be shipped to California.