Ralph, don't take the discussion on this car personal. An L89 nova is kinda a holy grail car. Some of us think they're out there, but some don't. I think the truth may lay somewhere in the middle with the aluminum heads being shipped with the car, and dealer installed before delivery. Problem with that is, why wouldn't chevy do it like the camaros, or chevelles, and corvettes, at the time of assembly and assign a code? I've had about 3 people tell me they have cars that came with the heads in the trunk, and were dealer installed, but none have the paper work/work order. I want someone to come up with the docs. But they will need to be complete, and verifiable. In the collector car world/market that we live in today, you need a paper trail, and even legal proof.
The guys here discussing this don't consider themselves experts,but they are pretty knowledgeable, and helpfull. The "experts" you talked to, honestly, should have known better, or explored further than they did, as it appears they lead you to an inaccurate answer.
They're out there. . . . somewhere.
