JE Pistons 400 SBC FLAT TOP Set of 8 Pistons

What you get in this kit is a set of eight flat-top pistons, specifically made for a 400 Small Block Chevy engine. These aren't just any pistons; they're forged from 2618 aluminum right here in the USA, which gives them the strong tensile strength needed for high-demand performance applications. JE Pistons has been doing this for over 75 years, and they engineer these pistons for each specific engine and use, aiming for the best mix of durability and performance.

You'll notice a few advanced design features here. The proprietary Forged Side Relief (FSR) forging design helps cut down on friction and power loss by using a narrower skirt and a shorter wrist pin, which also saves weight. Depending on the specific application, you might also find an accumulator groove, which helps manage combustion gas pressure to reduce ring flutter and keep your ring seal consistent for steady power. Some applications also include a skirt coating that works to reduce friction and wear on the piston skirts and cylinder walls, which can also help quiet things down a bit during operation.

These pistons are designed for a 4.125 inch bore with a 1.125 inch compression distance and use a 0.927 inch pin. Keep in mind that these are not CARB approved and cannot be shipped to California. If you're building a performance engine that needs reliable, well-built internal components, this set from JE Pistons is a solid choice.