JE Pistons Ring Sets 1.5-1.5-4.0-87.50

With a 0.0591-inch thick carbon steel nitride top ring, these JE Piston rings are built to precisely seal combustion pressure. This level of sealing is crucial for maximizing horsepower and ensuring your engine runs efficiently. JE Pistons offers these rings in a wide range of sizes and materials, and this particular set is designed for 4-cylinder engines with a 3.445-inch bore (87.50mm). They are file-fit, meaning you'll need to gap them to your specific application during installation, a common practice for performance builds.

The set includes a 0.0591-inch iron ferroxide second ring and a 0.1575-inch carbon steel chrome low-tension oil ring. These materials and thicknesses are chosen to work together for optimal performance and durability. JE Pistons uses the same ring services, like back cutting and PVD coating, for top racing teams as they offer to the public, which can lead to improved durability and reduced friction for more power.