this manifold is dirty but i have found no damage. it is stamped ford but there is no part numbers on it that i can find. i got this from a guy in his eightys. had it on a shelf in his barn. i went to look at a ford 8n tractor but ended up buying this instead. the story he gave me was he bought a 63 and a half 427 galixie 500 xl in 1966. said this manifold was in the trunk. this was an extera manifold as the car allready had 1 under the hood. all the bolt hole threads look very good and the push rod holes look good to. it is what it is.