Wiseco Mitsubishi EVO X 4B11 Turbo -4.5cc 86.75mm Bore 8.8 CR HD Forged Piston Kit

Wiseco is well-known for making strong internal engine components, especially for high-performance applications. This Professional Series forged piston kit is built for serious racers and builders working on a Mitsubishi 4B11 engine, like the one found in the EVO X. These pistons are designed to handle the demands of heavy to severe duty race builds, giving you the confidence to push your engine's limits.

Crafted from 2618 aluminum in the USA, these pistons offer improved tensile strength for durability under extreme conditions. They feature precision ring grooves, an anti-detonation groove, and other features to improve ring seal. The crown is fully machined, and the piston pin includes forced oiling to ensure proper lubrication. Additionally, the ArmorGlide skirt coating helps reduce friction and noise while resisting seizure, making them well-suited for demanding performance builds.

This kit includes four pistons, each with a bore of 86.75mm and a compression height of 29.26mm. The compression ratio is 8.8:1. 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 fitment and assembly procedures.