Wiseco Mitsubishi EVO X 4B11 Turbo -4.5cc 86.50mm Bore 8.8 CR HD Forged Piston Kit

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

Each piston in this kit is forged and machined in the USA from 2618 aluminum, chosen for its improved tensile strength under high stress. They feature precision ring grooves, anti-detonation grooves, and other features to improve ring seal. The piston crowns are fully machined, and they include forced pin oiling for better lubrication. Additionally, the ArmorGlide skirt coating helps reduce friction, resist seizure, and operate more quietly, all crucial for a high-performance engine.

This kit includes four pistons, each with an 86.50 mm bore and a -4.5cc dish volume, resulting in a compression ratio of 8.8:1. The pin diameter is 0.9055 inches. 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.