Wiseco Mitsubishi 4G63 2.0L Gen 2 w/ 156mm Long Rod 86mm Bore +.040 Oversize -4 Dome Dish Piston Set

If you're building a high-performance Mitsubishi 4G63 engine, especially for racing or severe duty applications, these forged pistons from Wiseco are a solid choice. They're designed to handle the extreme demands of serious engine builds, offering improved strength and durability over stock cast pistons. This set is specifically for the 4G63 engine, featuring an 86mm bore and a +.040 inch oversize, which is important for engine rebuilds where the cylinders might have been bored out to clean up imperfections or increase displacement.

Wiseco crafts these pistons from 2618 aluminum, a material known for its high tensile strength, making them well-suited for the high pressures and temperatures found in performance engines. The machining process is precise, with features like anti-detonation grooves and improved ring grooves to ensure a good seal between the piston and cylinder wall. They also come with a special ArmorGlide skirt coating that helps reduce friction and noise, while also resisting seizure. The crown of each piston is fully machined, and they include forced pin oiling for better lubrication of the wrist pin.

This set includes four pistons, ready for your engine build. Remember that these pistons are not CARB approved and cannot be shipped to California. It's always a good idea to consult your engine builder or a professional mechanic to ensure these pistons are the right fit for your specific build and to get the correct installation procedures, including proper ring gap and assembly.