JE Pistons BBC 4.660in Bore 23cc Dome Pistons - Set of 8

This is a set of eight JE Pistons designed for BBC (Big Block Chevrolet) engines with a 4.660-inch bore. These pistons feature a 23cc dome, which is important for determining your engine's compression ratio. They are forged in the USA from 2618 aluminum, a material chosen for its high tensile strength, making it well-suited for high-demand performance applications where durability is critical.

JE Pistons brings over 75 years of experience to their forged racing pistons. These are engineered and machined in the USA specifically for each engine and racing application. They incorporate 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. Depending on the specific application, these pistons may also include an accumulator groove to help reduce combustion gas pressure, which can prevent ring flutter and improve ring seal for more 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.

Because these pistons are designed for specific engines and uses, they offer an optimized combination of performance and durability. They are a popular choice for builders looking for proven performance, often seen in victory lane across various racing disciplines from dirt track to drag strip. Please note that these pistons are not CARB approved and cannot be shipped to California.