JE Pistons Ring Sets 3.830-1.5-1.5-4.0

When you're rebuilding the top end of your engine, getting the right piston rings is crucial for sealing combustion pressure and maximizing horsepower. These file-fit rings from JE Pistons are designed for that exact purpose, offering a way to ensure a precise seal in your cylinders. They come in a 3.830 inch bore size with a 1.5mm top ring, a 1.5mm second ring, and a 4.0mm oil ring, ready for you to file to your exact specifications.

The top ring is made from ductile iron with a plasma moly coating, which helps it seal combustion gases effectively while resisting wear. The second ring is a 0.0591 inch (1.5mm) iron phosphate ring, and the oil ring is a 0.1575 inch (4.0mm) carbon steel with a standard tension design. These materials and thicknesses are chosen to work together for improved ring seal and reduced friction, which can lead to noticeable gains in power and durability. JE Pistons uses the same techniques and services, like back cutting and PVD coating, for top racing teams, and these rings benefit from that same level of expertise.

Remember that these rings are file-fit, meaning you'll need to carefully file the end gap to match your cylinder bore and piston clearance specifications. This is a standard procedure for performance builds to ensure optimal sealing. Please note that these rings are not CARB approved and cannot be shipped to California.