JE Pistons 400 SBC .305 DOME Set of 8 Pistons

If you're building a high-performance 400 Small Block Chevy engine, these JE Pistons are a solid choice. This set includes eight pistons, each forged from 2618 aluminum, a material known for its high tensile strength, making it ideal for demanding performance applications. They're designed with a .305-inch dome to help achieve specific compression ratios, crucial for optimizing power output in a performance build.

JE Pistons brings over 75 years of experience to their forged racing pistons, and these are no exception. They're engineered and machined 100% in the USA, ensuring a high level of quality control. The proprietary Forged Side Relief (FSR) design is notable for minimizing friction and power loss by using a reduced skirt width and a shorter wrist pin, which also saves weight. Depending on the specific application, these pistons may also feature an accumulator groove to help reduce combustion gas pressure, improving ring seal and maintaining consistent power. A skirt coating, if included for your application, further reduces friction and wear on the piston skirts and cylinder walls, contributing to quieter operation and longer life.

This piston kit is designed specifically for the 400 SBC engine, with a 4.130-inch bore and a 0.927-inch pin diameter. The 10.8 cc dome volume is a key specification for tuning your engine's compression. Please note that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly details.