Wiseco Mitsubishi EVO X 4B11 Turbo -4.5cc 87mm 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 EVO X with the 4B11 Turbo engine. 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.

Each piston is forged and machined in the USA from 2618 aluminum, which offers improved tensile strength for durability under high stress. They feature precision ring grooves, anti-detonation grooves, and other features designed to improve ring seal. The pistons also come with an ArmorGlide skirt coating that helps resist seizure, reduces friction, and quiets operation. The fully machined crown and forced pin oiling further contribute to their robust design for demanding performance use.

This kit includes four pistons, each with an 87mm bore and a -4.5cc dish volume, resulting in a compression ratio of 8.8:1. The compression height is 29.26mm, and they use a 0.9055-inch pin diameter. Please note that these pistons are not CARB approved and cannot be shipped to California. They are intended for off-road use and racing applications.