Fits BBF Ford 351C 400 429 460 Cheveland Pro V8 Coil Distributor Billet Blue Cap BBF Ready To Run distributor with blue cap small base and cap (3 3/4") for space savings Designed for Big Block Ford 1968-1997 351C 315M 400 429 460 V8 engines Maintenance free magnetic pickup Sealed ball bearings .sintered bushing .hardened steel shaft. No vacuum advance