JE Pistons Nissan RB25DET 86mm Bore 0.827in Pin Dia 8.5:1 CR - Set of 6

If you're rebuilding the engine in your Nissan RB25DET for serious performance, a set of forged pistons is a critical component. These JE Pistons are built specifically for your RB25DET, offering a robust 8.5:1 compression ratio with an 86mm bore. They are forged from 2618 aluminum, a material known for its high tensile strength, making it well-suited for the demands of high-performance applications where stock cast pistons might not hold up.

JE Pistons brings over 75 years of experience to the table, and these pistons are manufactured 100% in the USA. They feature a proprietary Forged Side Relief (FSR) design, which helps minimize friction and power loss by reducing skirt width and using a shorter wrist pin for added weight savings. Depending on the specific application, these pistons may also include an accumulator groove to help manage combustion gas pressure, leading to better ring seal and consistent power. Some applications also benefit from a skirt coating that further reduces friction and wear on the cylinder walls, while also helping to quiet down operation.

This set includes everything you need to get your RB25DET engine rebuilt: six pistons, high-quality wrist pins, locks, and JE Pro Seal premium piston rings. They are designed for optimal performance and durability, whether you're building for track days or street performance. Please note that these pistons are not CARB approved and cannot be shipped to California.