JE Pistons 400 SBC DOME 18DEG Set of 8 Pistons

This is a set of eight JE Pistons designed for a 400 SBC engine with an 18-degree cylinder head configuration. You'll receive the pistons themselves, ready to be installed in your build. These pistons are forged in the USA from 2618 aluminum, a material chosen for its high tensile strength, which is crucial for engines that see a lot of stress and demand high performance. They feature a dome design and are intended for a 4.155-inch bore size.

JE Pistons has been making performance pistons for a long time, and they've incorporated some advanced features into this set. The proprietary Forged Side Relief (FSR) design helps minimize 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 might also include an accumulator groove to help manage combustion gas pressure, reducing ring flutter and improving the seal for consistent power delivery. Some applications also benefit from a skirt coating that further reduces friction and wear on the piston skirts and cylinder walls, which can also lead to quieter operation.

These pistons are specifically designed for the 400 SBC engine and its intended use, aiming for an optimal balance of performance and durability. Keep in mind that this part is not CARB approved and cannot be shipped to California. If you're building a high-performance engine, these pistons are a solid option backed by extensive experience in racing applications.