the best way to tell, is that the repops are marked "good mark" on the area where the latch is. they are slightly lighter. rust was my factor in replacing my hood. once its on and the letters are filled in they are virtually identical. they fit nice and look great. sure original is great if no rust and dont have 40 yrs of abuse. as a alternative, they fit the bill fine. they are purist who snub them; but, its not the hood thats important its the cars documentation and who owns it. if you want the look that cost less than originals, then go for it. if your a purist dont.