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 strong set of pistons is fundamental. These JE Pistons are forged from 2618 aluminum, a material chosen for its high tensile strength, which is crucial for handling the demands of high-performance engines. They are engineered specifically for the 4G63 engine, ensuring they work well with its specific design.

JE Pistons has been making forged pistons for over 75 years, and these are made 100% in the USA. They feature a proprietary Forged Side Relief (FSR) design that helps reduce friction and skirt width, saving weight. Depending on the specific application, they may include an accumulator groove to help reduce combustion gas pressure, which improves ring seal and keeps power consistent. Some applications also get a skirt coating to further reduce friction and wear on the cylinder walls, leading to quieter operation and longer life. This kit includes the pistons, high-quality wrist pins, locks, and JE Pro Seal premium piston rings, so you have the essential components for installation.

This particular kit is designed for a 3.386-inch bore and features an inverted dome/dish piston with a 22mm pin. Please note 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.