JE Pistons BBC .580 DOME Set of 8 Pistons

These JE Pistons are forged from 2618 aluminum, a material chosen for its high tensile strength, making them well-suited for high-demand performance applications. This set is specifically designed for BBC (Big Block Chevrolet) engines, featuring a .580-inch dome to optimize combustion chamber volume and performance. Each piston is engineered and machined 100% in the USA, drawing on JE Pistons' extensive experience in racing applications.

The design incorporates a proprietary Forged Side Relief (FSR) forging, 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 feature an accumulator groove to reduce combustion gas pressure, preventing ring flutter and improving ring seal for more consistent power delivery. A skirt coating, also application-dependent, further reduces friction and wear on the piston skirts and cylinder walls, contributing to quieter operation.

This set includes eight pistons, each designed for a 4.320-inch bore with a 1.120-inch compression distance and a 0.990-inch wrist pin. They are intended for use in 8-cylinder engines and come with a 44.0 cc dome volume. Please note that these pistons are not CARB approved and cannot be shipped to California.