JE Pistons BMW S52B32US 9:1 KIT Set of 6 Pistons

This kit gets you six JE Pistons forged pistons, designed specifically for the BMW S52B32US engine. You'll also find high-quality wrist pins, locks, and JE Pro Seal premium piston rings included, so you have the essential components to rebuild your engine's top end. These pistons feature a 9.00:1 compression ratio and an inverted dome/dish design, with a 3.425-inch bore size.

JE Pistons uses a proprietary Forged Side Relief (FSR) forging design, which helps minimize friction and power loss by reducing skirt width. This design also saves weight with a shorter wrist pin. The pistons are forged in the USA from 2618 aluminum, a material chosen for its high tensile strength, which is crucial for high-demand performance applications. Depending on the specific application, these pistons may also include an accumulator groove to reduce combustion gas pressure, helping to prevent ring flutter and improve ring seal for consistent power. A skirt coating, also application-dependent, further reduces friction and wear on the piston skirts and cylinder walls, while also contributing to quieter operation.

When you're looking to build a high-performance engine, especially for racing applications where durability and power are paramount, JE Pistons has a long history of proven performance. These pistons are engineered and machined 100% in the USA, ensuring a high standard of manufacturing. Keep in mind that this kit is not CARB approved and cannot be shipped to California.