JE Pistons Ford 2.5L ST 84.00mm Bore 8.50:1 Single Piston

If you're working on a Ford 2.5L ST and need a replacement piston, this single forged piston from JE Pistons is a solid option. JE Pistons has been making performance pistons for a long time, and these are built in the USA using 2618 aluminum. This material gives them the strong tensile strength needed for engines that are pushed hard, whether that's on the track or just in spirited driving.

This particular piston has an 84.00mm bore and a compression ratio of 8.50:1, designed to work with the specific engine application. JE Pistons uses a proprietary Forged Side Relief (FSR) design, which helps reduce friction and power loss by using a narrower skirt and a shorter wrist pin. Some applications also get a skirt coating to further cut down on friction and wear, which can also make the engine run a bit quieter. An accumulator groove is included to help manage combustion pressure, improving the ring seal for consistent power delivery.

This piston comes with high-quality wrist pins, locks, and JE Pro Seal premium piston rings, so you have the essential pieces to get your engine rebuilt. Keep in mind that this part is not CARB approved and cannot be shipped to California.