TOTAL SEAL 4.000 plus 5 1.5 1.5 3.0 8CYL For Use With 8 Cylinder Engine; 4.005 Inch Bore; Plasma-Moly Ductile Iron Top Ring; With 1.5 Millimeter Top Ring/ 1.5 Millimeter Second Ring/ 3.0 Millimeter Standard Tension Oil Ring; Complete Set; Race Use