JE Pistons LS ASYM FT 4.100STRK Set of 8 Pistons

Starting with a proprietary Forged Side Relief (FSR) forging design, these JE Pistons for LS engines are built to minimize friction and power loss. This design uses a reduced skirt width and a shorter wrist pin, which also helps save weight. They are forged in the USA using 2618 aluminum, a material chosen for its high tensile strength, making it well-suited for high-demand performance applications where durability is critical.

Each piston in this set is designed specifically for the LS engine and its intended use, aiming for optimized performance and longevity. The set includes features like an accumulator groove, which can help reduce pressure from combustion gases, leading to less ring fluttering and an improved ring seal for consistent power delivery. Some applications may also feature a skirt coating designed to reduce friction and wear on the piston skirts and cylinder walls, while also contributing to quieter operation.

This kit is for an 8-cylinder engine and includes 8 pistons. The bore size is 4.030 inches, with a compression distance of 1.065 inches and a pin diameter of 0.927 inches. Please note that these pistons are not CARB approved and cannot be shipped to California.