JE Pistons 400-12 SBC .150 DOME Set of 8 Pistons

JE Pistons is known for making well-built forged racing pistons, drawing on over 75 years of experience. They apply that knowledge to their range of forged pistons for domestic engines, and this set for SBC 400 engines is a great example. These pistons are engineered specifically for each engine and racing application, aiming for the best balance of durability and performance. They are forged and machined entirely in the USA, using 2618 aluminum, which gives them the strong tensile strength needed for high-demand performance builds.

This set features JE Pistons' proprietary Forged Side Relief (FSR) design. This design helps minimize friction and power loss by using a reduced skirt width, and it also saves weight with a shorter wrist pin. Depending on the specific application, these pistons may also include an accumulator groove to help reduce combustion gas pressure, which can prevent ring flutter and improve ring seal for consistent power. Some applications also come with a skirt coating that reduces friction and wear on the piston skirts and cylinder walls, while also cutting down on operating noise. The 4.155-inch bore size and .150-inch dome volume are designed for optimal performance in this engine configuration.

This piston set is designed for performance applications and is not CARB approved, meaning it cannot be shipped to California. It's important to note that this is a set of 8 pistons, each with a 4.155-inch bore, a 1.100-inch compression distance, and a 0.927-inch pin diameter. For detailed installation instructions and any specific hardware requirements, always refer to the manufacturer's guidelines.