Kyle's 77 Cutlass

So I have my 77 cutlass to restore, so I had bought a parts cars last year. It is an 76 cutlass but the guy was cloning it to become a 442. The car has 442 fenders and doors. Now do these match to a cutlass or not, they look the same.Any ways I have some fenders from a 76 cutlass on the way so these 442's will be for sale.