JE Pistons MITSU 4G63 94STR KIT Set of 4 Pistons

If you're rebuilding the engine in your Mitsubishi Lancer Evolution VII through IX for serious performance, a set of forged pistons is a critical component. These JE Pistons are built to handle the stresses of high-output 4G63 engines, offering a solid foundation for boosted builds. They are designed to replace your stock pistons and provide the durability needed for demanding applications.

JE Pistons uses a proprietary Forged Side Relief (FSR) design, which helps reduce friction and skirt wear, contributing to both performance and longevity. The pistons are forged in the USA from 2618 aluminum, a material known for its high tensile strength, making them well-suited for high-performance engines. This specific kit is for a 3.366 inch bore and includes the necessary high-quality wrist pins, locks, and JE Pro Seal premium piston rings to get your engine back together.

This set is designed specifically for the 4G63 engine and includes features like an inverted dome/dish to achieve an 8.50:1 compression ratio, which is ideal for turbocharged applications. Keep in mind 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.