This oil cap features the rectangular FoMoCo Logo and a beautiful chrome finish. It is the twist on version that is an exact reproduction of the cap used on 67 390's and 289 HiPo's with the chrome valve covers. It will also fit all valve covers that accept the twist on type of oil cap. It, of course, will fit all 1968-70 original small and big block valve covers if you wish to have a cleaner looking engine by eliminating the emission breather fitting coming out the top that these cars originally had.