JE Pistons 400 SBC FLAT TOP Set of 8 Pistons

If you're building a high-performance 400 small-block Chevy engine, a solid set of pistons is where you start. These flat-top pistons from JE Pistons are designed for that kind of demanding build, giving you a strong foundation for serious power. They're made in the USA using 2618 aluminum, which has the high tensile strength you need when you're pushing an engine hard, whether that's on the drag strip or in a custom street build.

JE Pistons brings over 75 years of experience to these forged pistons. They feature a proprietary Forged Side Relief (FSR) design that helps reduce friction and weight by using a narrower skirt and a shorter wrist pin. Depending on the specific application, you might also find an accumulator groove, which helps manage combustion gas pressure to keep your rings sealed tight and maintain consistent power delivery. Some applications also include a skirt coating to further cut down on friction and wear, which can also help quiet things down a bit. Because they're designed specifically for the 400 SBC engine, you can expect optimized performance and durability.

This set includes eight pistons, each with a 4.155-inch bore and a flat-top design. It's important to note that these pistons are not CARB approved and cannot be shipped to California. For a high-performance build, consider what else you might need, such as rings, connecting rods, and a quality machine shop to ensure everything is balanced and installed correctly.