JE Pistons SBC 400 FSR DOME Set of 8 Pistons

If you're rebuilding a high-performance Small Block Chevy 400 engine, these JE Pistons FSR Dome pistons are a solid choice. They're forged from 2618 aluminum, a material known for its high tensile strength, making it well-suited for the demanding conditions of racing and high-output street applications. This set includes eight pistons, each designed with a specific bore size of 4.125 inches and a dome volume of 10.8cc.

JE Pistons has been making forged racing pistons for over 75 years, and they engineer and machine these right here in the USA. The FSR forging design is a key feature, using a proprietary shape that minimizes friction and power loss by reducing skirt width. This design also saves weight by using a shorter wrist pin. Depending on the specific application, these pistons may also come with an accumulator groove to help reduce combustion gas pressure, which can prevent ring flutter and improve ring seal for more consistent power. Some applications also include a skirt coating that further reduces friction and wear on the piston skirts and cylinder walls, while also helping to quiet down the engine's operation.

This piston set is designed specifically for the SBC 400 engine and its intended use, aiming for an optimal balance of performance and durability. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. For a complete build, you'll want to ensure you have the correct wrist pins and locks, as well as appropriate rings for your specific engine setup.