JE Pistons 400-18 SBC FLAT TOP Set of 8 Pistons

When you're rebuilding a Small Block Chevy (SBC) engine for serious performance, the pistons are a critical component. This set of eight flat-top pistons from JE Pistons is built to handle the demands of high-performance applications, whether you're on the track or just want a robust street engine. They are forged in the USA from 2618 aluminum, a material chosen for its high tensile strength, which is essential for engines that see a lot of stress.

JE Pistons brings over 75 years of experience to these components. They feature a proprietary Forged Side Relief (FSR) design, which helps minimize friction and power loss by reducing skirt width. This design also saves weight, especially when paired with a shorter wrist pin. Depending on the specific application, these pistons may also include an accumulator groove to manage combustion gas pressure, improving ring seal and keeping power consistent. Some applications also benefit from a skirt coating that further reduces friction and wear on the piston skirts and cylinder walls, contributing to quieter operation.

This set is designed specifically for the SBC engine with a 4.125-inch bore. Each piston is a flat-top design with a -6.00 cc dish, and they use a 0.927-inch wrist pin. It's important to note that these pistons are not CARB approved and cannot be shipped to California. If you're building a high-performance SBC, these JE Pistons offer a well-built foundation.