JE Pistons LS ASYM FT 4100STRKR Set of 8 Pistons

These JE Pistons LS ASYM FT 4100STRKR pistons are forged from 2618 aluminum, a material chosen for its high tensile strength, making them well-suited for high-demand performance applications. Each piston in this set of eight is designed specifically for the LS engine and its intended use, aiming for an optimized balance of performance and durability. They are manufactured entirely in the USA, reflecting over 75 years of JE Pistons' experience in creating forged racing pistons.

The proprietary Forged Side Relief (FSR) design is a notable feature, incorporating a reduced skirt width and a shorter wrist pin. This construction helps minimize friction and power loss while also saving weight. Depending on the specific application, these pistons may also include an accumulator groove, which works to reduce pressure from combustion gases. This can help prevent ring flutter and improve the overall ring seal, leading to more consistent power output. Additionally, some applications might feature a skirt coating designed to further reduce friction and wear on the piston skirts and cylinder walls, which can also contribute to quieter operation.

This set is configured for a 4.135-inch bore with a 1.065-inch compression distance and utilizes a 0.927-inch wrist pin. It's important to note that these pistons are not CARB approved and cannot be shipped to California. For a complete build, consider the other components needed for your engine assembly.