Product Overview:- 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 Pro Stock And Teams, Are Now Available To The Public And Offer Tremendous Gains In Durability, Power Through Reduced Friction, And Improved Ring Seal.Product Info:- Je Pistons Ring Sets 1.0-1.2-2.8-3.268- Top Compression Ring Thickness: 0.0394- Second Compression Ring Thickness: 0.0472- Oil Ring Thickness: 0.110- Top Ring Facing Material: Nitride- Top Ring Material: Carbon Steel- Second Ring Facing Material: Phosphate- Second Ring Material: Ductile Iron- Third Ring Facing Material: Carbon Steel- Third Ring Material: Carbon Steel- File Fit: YesManufacturer Part Number:- Part Number: Jg1004-3268