Exhaust ValveHead Diameter: 1.540'Tip Length: 0.383'O.A.L.: 5.078'Stainless SteelSwirl PolishedUnder-Cut StemFits:GT-40 Iron Head397-M-6049-L302/303397-M-6049-Y302/X302/X304/X305/X306/X30 Stainless SteelThese Ford Racing valves are available in several configurations to cover a variety of engines and requirements. Theyre high-quality steel valves that are ideal for your Ford engine project.Stainless Steel1.540 in. Head Diameter0.383 in. Tip Length5.078 in. Total Length11/32 in. Stem DiameterSquare Cut Groove Type