JE Pistons RENAULT WILLIAMS F7R 12.5:1 Set of 4 Pistons

Forged in the USA from 2618 aluminum, these JE Pistons are built for high-demand performance applications like your Renault F7R engine. They feature a 12.5:1 compression ratio, which means they're designed to squeeze more power out of every combustion cycle compared to stock pistons. This specific set is for the F7R engine and includes four pistons, each with a 3.307-inch bore.

JE Pistons uses a proprietary Forged Side Relief (FSR) design that helps reduce friction and power loss by using a narrower skirt and a shorter wrist pin, which also saves weight. Depending on the specific application, these pistons might also include an accumulator groove to help manage combustion gas pressure, improving ring seal for consistent power delivery. Some applications also get a skirt coating that further reduces friction and wear on the piston skirts and cylinder walls, while also cutting down on operating noise. You'll also get high-quality wrist pins, locks, and JE Pro Seal premium piston rings included in this kit, making it a complete package for your engine build.

Because these pistons are designed for high-performance use, they are not CARB approved and cannot be shipped to California. If you're rebuilding the top end of your F7R engine and looking for a durable, high-compression piston set, these JE Pistons are a solid option.