Engine Fit: 289, 302, 347, 351W (Not 351 Cleveland) Dimensions: Exterior: 3-7/8", Interior: 3-11/16" Color/Finish: Black Powder Coat Oil Baffles Installed/Grommets Included Clears Roller Rockers/Stud Girdles These valve covers feature a Carroll Shelby signature, Cobra and CS Shelby logo. Ansen Valve Covers are built from high-grade die-cast aluminum and proudly Made in the USA.