JE Pistons Ring Sets 1.5-1.5-4mm-3.307 - J640F1-3307

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.

Features & Benefits

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

Specifications: Piston Ring Set, 1 Cyl., File Fit, Each.

Detailed Specifications

• Bore Diameter: 3.307 in.
• Second Compression Ring Thickness: 0.0591 in.
• Top Compression Ring Thickness: 0.0591 in.
• Ring Set Thickness: 0.0591 in. Top x 0.0591 in. 2nd x 0.158 in. Oil
• Oil Ring Thickness: 0.158 in.
• Third Ring Facing Material: Carbon Steel
• Third Ring Material: Carbon Steel
• Second Ring Facing Material: Phosphate
• File Fit: Yes