Ford Racing Engine Block Threaded Core PlugsThese Ford Racing freeze plug kits are great for use in your racing application. They won't back out under heavy loads or high vibration, and are easy to remove during teardown. This Part Fits: Year Make Model Submodel 1966 1968 AC Shelby Cobra Base 1975 1976 Bricklin SV 1 Base 1970 1971 DeTomaso Mangusta Base 1971 1974 DeTomaso Pantera Base 1987 1989 DeTomaso Pantera GT5 S 1963 Ford 300 Base 1966 1974 Ford Bronco Base 1975 1993 Ford Bronco Custom