JE Pistons Chevy Small Block 4.030in Bore -3.8cc (Left Side) - Single Piston

This listing is for a single JE Pistons forged piston designed for Chevrolet Small Block engines. It features a 4.030 inch bore and a -3.8cc dish top, intended for the left side of the engine. These pistons are forged in the USA from 2618 aluminum, which provides the high tensile strength needed for demanding performance applications.

JE Pistons applies over 75 years of experience to create pistons optimized for specific engines and racing uses, aiming for a balance of durability and performance. This particular piston includes a proprietary Forged Side Relief (FSR) design, which helps minimize friction and power loss by using a reduced skirt width and a shorter wrist pin, saving weight. Depending on the specific application, it may also feature a skirt coating to further reduce friction and wear on the piston skirts and cylinder walls, while also quieting operation. An accumulator groove might also be present to help manage combustion gas pressure, improving ring seal and ensuring consistent power delivery.

This piston is not CARB approved and cannot be shipped to California. Please consult manufacturer documentation for detailed installation instructions and compatibility with your specific engine build.