JE Pistons SBC 400 FSR DOME Set of 8 Pistons

If you're building a high-performance Small Block Chevy 400, these JE Pistons FSR Dome pistons are a solid choice. JE Pistons has been making forged racing pistons for over 75 years, and they engineer and machine these right here in the USA. They're built from 2618 aluminum, which gives them the strong tensile strength you need when you're pushing an engine hard, whether that's on the dirt track or the drag strip.

What sets these apart is the FSR forging design. It uses a proprietary forging with reduced skirt width and a shorter wrist pin. This design helps cut down on friction and power loss, while also saving 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 rings sealed for consistent power. Some applications also include a skirt coating that further reduces friction and wear on the piston skirts and cylinder walls, which can also help quiet down engine noise.

This set is designed specifically for the SBC 400 engine with a 4.125-inch bore. They have a dome shape with a 10.8 cc volume, and they use a 0.927-inch wrist pin. Remember, these are not CARB approved and cannot be shipped to California. If you're looking for pistons that are proven in racing and built tough for demanding applications, these JE Pistons are a great option.