JE Pistons BBC INV DOME Set of 8 Pistons

These JE Pistons BBC Inv Dome pistons are forged from 2618 aluminum, a material chosen for its high tensile strength, making them well-suited for high-demand performance applications. Each piston features a proprietary Forged Side Relief (FSR) design, which helps minimize friction and power loss by using a reduced skirt width. This design also contributes to weight savings by allowing for a shorter wrist pin.

JE Pistons has been a leader in forged racing pistons for over 75 years, and this set is a testament to that experience. They are engineered and machined 100% in the USA, specifically for the BBC engine and its intended racing application. This custom design ensures an optimized combination of durability and performance, whether you're on the dirt track or the drag strip. An accumulator groove, depending on the specific application, can help reduce combustion gas pressure, which in turn reduces ring fluttering and improves ring seal for more consistent power delivery. Some applications also include a skirt coating to further reduce friction and wear on the piston skirts and cylinder walls, while also contributing to quieter operation.

This set includes eight pistons, each designed for a 4.600-inch bore with a 1.270-inch compression distance and a 0.990-inch wrist pin. Please note that these pistons are not CARB approved and cannot be shipped to California. They are also subject to Prop 65 warnings.