Wiseco Mitsubishi EVO X 4B11 Turbo -14cc 86.25mm Bore 8.8 CR HD Forged Piston Kit

If you're building a high-performance Mitsubishi EVO X with the 4B11 engine, Wiseco's Professional Series forged piston kit is a solid choice for serious racers and builders. These pistons are designed from the ground up to handle the demands of heavy to severe duty race applications, offering a significant upgrade over stock components. They feature a -14cc dish, a bore size of 86.25mm, and a compression ratio of 8.8:1, making them suitable for boosted applications where durability and performance are paramount.

Wiseco crafts these pistons in the USA from 2618 aluminum, a material chosen for its improved tensile strength, which is crucial for withstanding the high pressures and temperatures found in racing engines. The machining process is meticulous, with precision ring grooves, anti-detonation grooves, and features designed to enhance ring seal. The piston crown is fully machined for accuracy, and they come equipped with forced pin oiling to ensure proper lubrication. Additionally, the ArmorGlide skirt coating helps reduce friction, resist seizure, and contribute to quieter operation, all important factors when pushing an engine to its limits.

This kit includes a set of four pistons, ready for installation in your 4B11 engine. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. For builders aiming to remove limits and achieve maximum performance from their EVO X, this Wiseco piston kit is a well-built foundation.