JE Pistons GM LS1 FT 6.125in Rod 3.905in Bore -30.2cc Dish - Set of 8

This is a set of eight forged pistons from JE Pistons, designed for GM LS1 engines. You get the pistons themselves, ready to be installed in your build. These pistons are forged in the USA using 2618 aluminum, a material chosen for its high tensile strength, which is crucial for engines that see a lot of demand and high performance applications. They feature a 3.905-inch bore size and a dish volume of -30.2cc, which helps determine your final compression ratio when paired with your cylinder heads and gasket thickness.

JE Pistons has applied over 75 years of experience to these components, focusing on a combination of durability and performance. They use a proprietary Forged Side Relief (FSR) forging 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 might also include an accumulator groove to help reduce combustion gas pressure, which can improve ring seal and lead to more consistent power. Some applications also feature a skirt coating to further reduce friction and wear on the piston skirts and cylinder walls, while also helping to quiet down operating noise.

These pistons are made 100% in the USA and are specifically designed for the GM LS1 engine and its typical use cases, aiming for optimized performance and durability. Keep in mind that these are not CARB approved and cannot be shipped to California. If you're building a high-performance LS1 engine, these pistons are a solid option to consider for the core of your rotating assembly.