JE J660U6-3937 Piston Ring Set (3.937 in. Bore, 0.0591 in. Top / 0.0689 in. 2nd / 0.118 in. Oil, 6 Cyl.)

Description JE J660U6-3937 Piston Ring Set (3.937 in. Bore, 0.0591 in. Top / 0.0689 in. 2nd / 0.118 in. Oil, 6 Cyl.)

JE Piston Rings are designed to maximize Horsepower / HP through precision sealing of combustion pressure. They are available in a wide selection of sizes, materials, and thicknesses to suit various engines.

JE Pistons also offers custom Piston Ring services, including back cutting, Dykes cutting, lapping, grinding, and PVD coating. Used by top NHRA Pro Stock and NASCAR teams, these services are available to the public and provide increased durability, power through reduced friction, and improved Piston Ring sealing.

Specifications:

• Bore Diameter: 100.00 mm / 3.937 in
• Ring Type: 3 Ring
• File Fit: Yes
• Top Ring Axial Height: 0.95 mm
• Top Ring Radial Width: 0.165 in
• Top Compression Ring Thickness: 0.0591 in
• Top Ring Facing Material: Phosphate
• Top Ring Material: Iron
• Top Ring Shape: Taper Face, Back Cut, Neutral
• Second Ring Axial Height: 1.75 mm
• Second Ring Radial Width: 0.165 in
• Second Compression Ring Thickness: 0.0689 in
• Second Ring Facing Material: Phosphate
• Second Ring Shape: Napier, Back Cut, Neutral
• Oil Ring Axial Height: 3.00 mm
• Oil Ring Radial Width: 0.150 in
• Oil Ring Thickness: 0.118 in
• Third Ring Facing Material: Iron
• Third Ring Material: Iron
• Third Ring Shape: 2 Piece with Inner Spring, Double Bevel
• Ring Set Thickness: 0.0591 in Top x 0.0689 in 2nd x 0.118 in Oil
• Product Type: Engine Piston Ring Set