Ford flathead heads. I believe these are for 1949-1953 239 and 255 cu. in. motors. I have not had them tested for cracks. They do not appear to have any cracks. They have EAB on them, which I think makes them 52-53. They have a little pitting on the bottom. I do not know if these came off the same motor. Please look closely at the pictures and ask any questions before purchasing. words only, I\'m not implying it fits any of these years or models. Ford Mercury 1949 1950 1951 1952 1953 flat head V8 24 bolt 8BA 8CM 8RT EAB EAC

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