JE Pistons 400 SBC .305 DOME Set of 8 Pistons

When you're rebuilding a 400 SBC engine for serious performance, the pistons are a critical component. This set of eight forged pistons from JE Pistons is designed to handle the demands of high-horsepower applications. They are forged and machined entirely in the USA, using 2618 aluminum, which gives them the high tensile strength needed for engines that push the limits.

JE Pistons has been a leader in forged racing pistons for over 75 years, and this experience shows in their design. These pistons feature a proprietary Forged Side Relief (FSR) forging design. This means they have a reduced skirt width, which minimizes friction and power loss, and a shorter wrist pin, saving additional weight. Depending on the specific application, some sets include an accumulator groove to help reduce combustion gas pressure, which can prevent ring flutter and improve ring seal for more consistent power delivery. A skirt coating, also application-dependent, further reduces friction and wear on the piston skirts and cylinder walls, contributing to quieter operation.

These pistons are specifically designed for the 400 SBC engine and are built for performance use. They feature a .305 dome and a 4.125 inch bore. It's important to note that this part is not CARB approved and cannot be shipped to California. For a high-demand performance build, these JE Pistons offer a well-built foundation.