JE Pistons 400 SBC .165 DOME Set of 8 Pistons

If you're rebuilding a high-performance 400 small-block Chevy engine, a solid set of pistons is crucial for durability and power. These JE Pistons are forged from 2618 aluminum, a material known for its high tensile strength, making them well-suited for demanding performance applications where stock cast pistons just won't cut it. They are engineered specifically for the 400 SBC application to give you optimized performance and longevity.

JE Pistons brings over 75 years of experience to the table, and these pistons reflect that. They feature 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 in the process. Depending on the specific application, you might also find an accumulator groove to help manage combustion gas pressure, reducing ring flutter and improving ring seal for consistent power delivery. Some applications also include a skirt coating that further reduces friction and wear on the piston skirts and cylinder walls, which can also lead to quieter operation.

This set includes eight pistons, each designed for a 4.125-inch bore with a .165-inch dome. Remember that these pistons are not CARB approved and cannot be shipped to California. For a serious engine build, these JE Pistons are a well-built choice made 100% in the USA.