Wiseco Mitsubishi EVO X 4B11 Turbo -14cc 86.50mm 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 the Mitsubishi EVO X with the 4B11 Turbo engine, designed for serious racers and builders who push their engines hard. These aren't just any pistons; they're crafted from 2618 aluminum, forged and machined right here in the USA, giving them improved tensile strength for demanding builds.

You'll find precision ring grooves, anti-detonation grooves, and other features that help improve ring seal, which is crucial for keeping combustion pressure where it belongs. They also come with an ArmorGlide skirt coating. This coating helps reduce friction, makes operation quieter, and resists seizure, all important factors when you're dealing with heavy or severe duty performance. The fully machined crown and forced pin oiling further contribute to their durability and performance under stress.

This kit includes four pistons, each with a 86.50mm bore and a 8.8:1 compression ratio, featuring a -14cc dish. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. If you're rebuilding your 4B11 for serious performance, these pistons are built to handle the load.