I have a SINGLE Edmund custom (burke) flathead ford aluminum cylinder head. this is a 24 stud that should fit a 42-48 ford/mercury flathead with the center water jacket. this is in used shape with a couple of broken fins(check pics marked with flathead) and some wear. but they are over 50 years old. they have been blasted and look good. the spark plugs broke off and the ends are still in the heads. but should come out with some work. the water jackets look to be in good usable shape. I couldn't find any marks on the heads so I'm guessing that they have never been decked. someone stamped OR in one of the cylinders. Please check the pictures. SOLD