JE Pistons Ring Sets 1.0-1.2-2.8-90.5

This is a JE Pistons JG1008-3563 piston ring set, designed for 8-cylinder engines. These rings are built to create a tight seal in the cylinder bore, which is crucial for maximizing horsepower by ensuring combustion pressure stays where it belongs. JE Pistons offers these in a wide range of sizes and thicknesses to fit many different engine builds.

The set includes a 0.0394-inch carbon steel nitride top ring, a 0.0472-inch ductile iron phosphate second ring, and a 0.1102-inch low-tension carbon steel nitride oil ring. The nitride coating on the top and oil rings helps improve durability and reduce friction, contributing to both power gains and a longer lifespan for the rings. These are file-fit rings, meaning you'll need to gap them to your specific cylinder bore dimensions during installation, a common practice for performance builds to achieve optimal sealing.

Keep in mind that these rings are not CARB approved and cannot be shipped to California. If you're rebuilding an engine and need a reliable set of piston rings that can handle demanding applications, this JE Pistons set is a solid option.