JE Pistons - JG31F8-4040-2

Piston Rings - Premium Race Series - 4.040 in Bore - File Fit - 1.2 x 1.5 x 3.0 mm Thick - Standard Tension - Steel - Nitride - 8-Cylinder - Kit

Piston Ring Set, 8 Cyl., File Fit, 0.0472 in. Carbon Steel Nitride Top Ring, 0.0591 in. Iron Phosphate Second Ring, 0.1181 in. Carbon Steel Chrome Standard Tension Oil Ring, Each.

JE Piston Rings are designed to maximize horsepower through precision sealing of combustion pressure. They are offered in a huge selection of sizes, various materials, and in multiple thicknesses to suit a wide variety of engines. JE Pistons also offers an array of custom piston ring services including back cutting, dyke cutting, lapping, grinding, and PVD coating. These services, the same used by top NHRA Pro Stock and NASCAR teams, are now available to the public and offer tremendous gains in durability, power through reduced friction, and improved ring seal.

• Multiple high-end materials to suit street and racing applications; Precision lapping and other custom services available; Multiple ring face styles and coatings