JE Pistons BBC BIG CHIEF W/NOS Set of 8 Pistons

This is a set of 8 JE Pistons Big Block Chevrolet (BBC) "BIG CHIEF W/NOS" pistons, part number 243323. These pistons are built for high-demand performance applications, specifically designed for Big Block Chevrolet engines and intended for use with nitrous oxide (NOS). They feature a dome top and a 4.560 inch bore size, with a 0.990 inch wrist pin diameter and a 1.270 inch compression distance.

JE Pistons has been a leader in forged racing pistons for over 75 years, and these are forged and machined 100% in the USA using 2618 aluminum. This material choice provides the high tensile strength needed for extreme engine conditions. They incorporate JE's proprietary Forged Side Relief (FSR) design, which helps minimize friction and power loss by reducing skirt width and saving weight with a shorter wrist pin. Depending on the specific application, these pistons may also include an accumulator groove to reduce combustion gas pressure, improving ring seal and preventing flutter. Some applications also feature a skirt coating to further reduce friction and wear on the piston skirts and cylinder walls, which also helps to quiet down engine operation.

This set is designed specifically for each engine and use application to optimize performance and durability. Please note that these pistons are not CARB approved and cannot be shipped to California. They are intended for racing or off-road use where emissions regulations do not apply.