JE Pistons Acura K20A2/A3 Bore (90mm) Size (+4.0) CR (10.0:1) Flat Piston Set of 4

This JE Pistons kit gives you a complete set of four forged pistons, along with high-quality wrist pins, locks, and JE Pro Seal premium piston rings. These pistons are specifically made for Acura K20A2 and K20A3 engines, featuring a 90mm bore size and a 10.0:1 compression ratio with a flat top design. They are forged in the USA from 2618 aluminum, a material chosen for its high tensile strength, which is crucial for engines pushed to their limits in performance applications.

JE Pistons has over 75 years of experience, and these pistons reflect that. They use a proprietary Forged Side Relief (FSR) design that helps reduce friction and power loss by using a narrower skirt and a shorter wrist pin, saving weight in the process. Depending on the specific application, you might also find an accumulator groove, which helps manage combustion gas pressure to prevent ring flutter and maintain a consistent seal for reliable power. Some applications also include a skirt coating to further reduce friction and wear on the piston skirts and cylinder walls, which can also lead to quieter operation.

Because these pistons are designed specifically for each engine and its intended use, they offer an optimized balance of performance and durability. They are made 100% in the USA, ensuring a high standard of manufacturing. Keep in mind that these pistons are not CARB approved and cannot be shipped to California.