JE Pistons - Set of 4 Mitsubishi 4B11T 87.0mm Bore +.2 Dome Asymmetrical FSR Pistons - Set of 4

If you're building a high-performance Mitsubishi 4B11T engine, getting the right pistons is crucial for handling the increased stress and power. These JE Pistons are forged from 2618 aluminum, a material known for its high tensile strength, making them well-suited for demanding performance applications where stock pistons might not hold up. They are designed specifically for the 4B11T engine, ensuring they work with your specific build.

JE Pistons uses their proprietary Forged Side Relief (FSR) design, which means these pistons have a reduced skirt width and a shorter wrist pin. This not only saves weight but also helps minimize friction and power loss. Depending on the specific application, these pistons may also feature an accumulator groove to help control combustion gas pressure, improving ring seal for consistent power delivery. A skirt coating, if included for this application, further reduces friction and wear on the piston skirts and cylinder walls, contributing to quieter operation and longer life. Every set is made 100% in the USA, including the high-quality wrist pins, locks, and JE Pro Seal premium piston rings that come with them.

This set includes four pistons, each with an 87.0mm bore and a +.2 dome, designed to achieve a 10.00:1 compression ratio. It's important to 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.