JE Pistons 4.6 4V MODULAR 9.5:1 Set of 8 Pistons

This product includes a set of eight JE Pistons, specifically designed for the 4.6 4V Modular engine with a 9.5:1 compression ratio. These pistons are forged in the USA using 2618 aluminum, a material chosen for its high tensile strength, which is essential for engines operating under demanding performance conditions. JE Pistons brings over 75 years of experience to their manufacturing, ensuring each piston is built to withstand the rigors of racing and high-performance applications.

JE Pistons incorporate several advanced design features to optimize performance and durability. The proprietary Forged Side Relief (FSR) forging design helps minimize friction and power loss by reducing skirt width, and further saves weight with a shorter wrist pin. Depending on the specific application, these pistons may also include an accumulator groove, which helps manage combustion gas pressure to reduce ring flutter and improve ring seal for consistent power delivery. Additionally, a skirt coating, also application-dependent, is used to reduce friction and wear on the piston skirts and cylinder walls, contributing to quieter operation.

These pistons are designed specifically for the 4.6 4V Modular engine, ensuring optimized performance and durability for this particular application. They are made 100% in the USA, reflecting a commitment to domestic manufacturing and quality control. Please note that this product is not CARB approved and cannot be shipped to California.