JE Pistons GM LS 4.080in Bore LS3 Oversize -30cc Asymmetrical FSR Dish Pistons - Set of 8

JE Pistons is known for making well-built forged racing pistons, with over 75 years of experience. They've put that knowledge into this set of pistons for GM LS engines, specifically for LS3 applications. These aren't just any pistons; they're built to handle the demands of high-performance builds, offering a solid combination of durability and power.

These pistons are forged in the USA from 2618 aluminum, which gives them the high tensile strength needed for serious engine work. They feature JE's proprietary Forged Side Relief (FSR) design, which helps reduce friction and save weight by using a narrower skirt and a shorter wrist pin. Depending on the specific application, you might also find an accumulator groove to help reduce combustion gas pressure, leading to better ring seal and more consistent power. Some applications also include a skirt coating that further cuts down on friction and wear, while also making the engine run a bit quieter.

This set is designed for a 4.080-inch bore, which is an oversize for LS3 engines. Each piston has a -30cc asymmetrical dish, and the set includes eight pistons, wrist pins, and locks. Remember, these are not CARB approved and cannot be shipped to California. If you're building a high-demand LS engine, this set is made to perform.