JE Pistons COSWORTH N5B 92mm Bore 8:1 KIT Set of 4 Pistons

This JE Pistons kit gives you a complete set of four forged pistons, along with high-quality wrist pins, locks, and JE Pro Seal premium piston rings. These pistons are built for high-demand performance applications, specifically designed for the Cosworth N5B engine. The 92mm bore size and 8:1 compression ratio are key specifications for tuning your engine for power.

JE Pistons uses a proprietary Forged Side Relief (FSR) design, which helps minimize friction and saves weight by using a narrower and shorter skirt. Depending on the specific application, these pistons may also feature an accumulator groove to help reduce combustion gas pressure, leading to better ring seal and consistent power. A skirt coating, also application-dependent, further reduces friction and wear on the piston skirts and cylinder walls, while also helping to quiet down operation. All of this is forged in the USA from 2618 aluminum, a material chosen for its high tensile strength, which is crucial for handling the stresses of performance engines.

Because these pistons are designed specifically for the engine and its intended use, you can expect optimized performance and durability. JE Pistons has over 75 years of experience in creating forged racing pistons, and their products are proven in various racing environments. This kit is a solid option for anyone rebuilding or upgrading their Cosworth N5B engine for serious performance use.