JE Pistons 400 SBC DOME 18DEG Set of 8 Pistons

If you're building a high-performance 400 Small Block Chevy engine, a solid set of pistons is crucial. This set from JE Pistons is designed specifically for that application, featuring a dome shape and an 18-degree valve angle compatibility. JE Pistons has been a leader in forged racing pistons for over 75 years, and this set reflects that experience, offering a combination of durability and performance for demanding builds.

These pistons are forged in the USA using 2618 aluminum, a material known for its high tensile strength, which is exactly what you need when pushing an engine hard. They incorporate 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, also saving weight. Depending on the specific application, these pistons may also feature an accumulator groove to help manage combustion gas pressure, improving ring seal and maintaining consistent power. Some applications also include a skirt coating to further reduce 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 1.000-inch compression distance. The kit comes with a 0.927-inch pin. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. For optimal results, always refer to the manufacturer's installation instructions and recommended assembly procedures for your specific engine build.