JE Pistons Ring Sets 1.2-1.5-4mm 3.839

With a 0.0472-inch carbon steel chrome top ring and a 0.1575-inch carbon steel chrome low-tension oil ring, this JE Pistons ring set is built for performance. The second ring is made from iron phosphate, chosen for its durability. These rings are designed to precisely seal combustion pressure, which is key to maximizing horsepower in your engine. JE Pistons offers these sets in a wide variety of sizes and thicknesses to fit many different engines, and they even provide custom services like back cutting and PVD coating, the same kind used by top racing teams, to further improve durability and reduce friction.

This particular set is file-fit, meaning you'll need to gap the rings yourself to ensure a perfect fit for your specific cylinder bore. This is a common practice for performance builds where precise sealing is critical. While these rings are well-made for street and racing applications, please note they are not CARB approved and cannot be shipped to California.