I don't see why not. Center caps are pretty generic. It's just a matter of the wheel center bore,which would be the same for a given vehicle no matter who made the wheel. Plus,they "are" Alcoas. Center caps would make them look un-Ford. OEM? They are OEM...OEM Ford!
I look at it like the big trucks with Alcoas. Pete,Ken,Mack,or whoever built the truck but they all run Alcoa,Budd,Clark,etc wheels. Heck,the same is true with light trucks anyway,except most (not these) are made with a specific style. The Ford steelies guys like in these are AccuRides and for years they were Kelsey-Hayes on everything.