JE Pistons 502BBC OPEN CHAM DOM Set of 8 Pistons

When you're building a high-performance engine, the pistons are a critical component. What you get in this JE Pistons 502BBC OPEN CHAM DOM set is a complete kit of eight forged pistons, designed to handle the demands of serious performance applications. These aren't just off-the-shelf parts; JE Pistons has over 75 years of experience in forging racing pistons, and they engineer these specifically for each engine and use case to give you the best combination of durability and performance.

These pistons are forged in the USA from 2618 aluminum, a material known for its high tensile strength, which is exactly what you need when you're pushing an engine hard. They feature JE's 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 in the process. Depending on the specific application, you might also find an accumulator groove to help reduce combustion gas pressure, improving ring seal and keeping power consistent. Some applications also include a skirt coating that reduces friction and wear on the piston skirts and cylinder walls, which can also help quiet down engine noise.

This set is designed for a 4.625 inch bore and includes pistons with a dome volume of 28.9 cc. The wrist pin is 0.990 inches. It's important to note that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly details.