JE Pistons SBC 400 FSR DOME Set of 8 Pistons

JE Pistons has been a leader in forged racing pistons for over 75 years, and they've put that experience into this set of FSR Dome pistons for your SBC 400 engine. These aren't just generic pistons; they're engineered and forged right here in the USA using 2618 aluminum, a material chosen for its high tensile strength, which is crucial for engines pushed to their limits. This set is designed specifically for your engine and its intended use, aiming for that sweet spot where durability meets performance.

What sets these apart is the Forged Side Relief (FSR) design. This unique forging minimizes friction and power loss by using a narrower skirt and a shorter wrist pin, which also helps shed weight. Depending on your specific application, you might also find an accumulator groove, which helps manage combustion gas pressure to prevent ring flutter and keep your rings sealing consistently for reliable power. Some applications also include a skirt coating that works to reduce friction and wear on the piston skirts and cylinder walls, while also helping to quiet down the engine's operation.

This kit includes everything needed for an 8-cylinder engine, with a 4.155-inch bore, a 1.125-inch compression distance, and a 0.927-inch wrist pin. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. For serious performance builds, these pistons are a solid choice, proven on tracks across the country.