440 78 truck???

If you are lucky and it is still there the metal tag will be on the core support on the drivers side. And if you are really lucky there will be a paper equipment tag glued to the underside of the hood. The tag will not have a breakdown of options, just the VIN, cab, wheel base, and paint code(s) Good luck, and even if it is a 400 and not a 440 the big block truck guys would love the engine mounts, exhaust, radiator etc. You should have no problem selling the parts on Moparts.