JE Pistons Ultra Series Modular Ford Coyote Gen 3 3.681in Bore/3.65in Stroke Set of 8 Pistons

If you're building a high-horsepower Ford Coyote Gen 3 engine, especially one that will see boost or nitrous, you need pistons that can handle the extreme cylinder pressures. These Ultra Series pistons from JE Pistons are designed specifically for those demanding applications. They aren't just off-the-shelf parts; they come with custom-level features built right in to ensure your engine can perform reliably under intense stress.

What sets these pistons apart is JE's proprietary Aligned Grain Flow forging technology. This in-house process maximizes the tensile strength of the aluminum, making them incredibly strong to withstand the forces in a power-adder engine. You'll also find a thermal barrier crown coating, which is a ceramic-based material that reflects heat back into the combustion chamber. This helps keep the piston crown cooler and can improve how efficiently exhaust gases are scavenged. The skirt coating is there to reduce friction and wear on both the piston and the cylinder walls, which also helps quiet things down, especially during a cold start. Plus, they include lateral gas ports to help maintain a solid ring seal even at high RPMs and under heavy boost.

JE Pistons also includes high-strength wrist pins, made by Trend Performance, designed to handle the rigors of performance builds. Every feature on these Ultra Series pistons is optimized for high-horsepower racing engines, and they are made 100% in the USA. Keep in mind these are not CARB approved and cannot be shipped to California.