Got a chrome oil pan for my 67 gto 400. Problem is holes are way off. I mean not even enlarging the holes would it fit. I am well aware aftermarket will not be perfect but something is up. I cant even locate where I bought it because it came in after I took my block for machining. now that I was ready for install well it don't fit.:banghead: The one I bought claimed to fit 59-8?. Called summit for advise and the have pans for 67-72 and 72-76 why 72 is on both I don't know. Did 400 oil pans change? or is this super bad quality. I was hoping to resell this one if it fits 455 or other years.