JE Pistons JG4904-3927 - Ring Sets 99.75 Bore 79 Stroke 130.5mm 30.7mm C/D -17.0 Dome 405

JE Pistons JG4904-3927 - Ring Sets 99.75 Bore 79 Stroke 130.5mm 30.7mm C/D -17.0 Dome 405

Piston Ring Set, 4 Cyl., File Fit, 0.0472 in. Carbon Steel Nitride Top Ring, 0.0472 in. Iron Phosphate Second Ring, 0.0984 in. Carbon Steel Chrome Low 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.

• Highest quality ductile iron top ring with plasma-moly inlay
• Taper faced reverse torsional second rings
• combined with standard or low tension oil rings