I have a 1980 Firebird that I restored with my dad. He was sure that the car had a 400 in it, though it was not the original engine in the car. He passed away a few years ago though, and the car had been sitting while I was at college. I don't know much about the technical aspects of cars--that was all him, so I had taken it to a tires plus to get a few things tuned up because I'm trying to now sell it. The car runs very well and doesn't need a whole lot to be fully restored and I have easily over $10,000 in the car. So I was surprised when the mechanic at the shop told me I could only get about 3 grand for the car. I asked, "even with the 400?" to which he replied that it wasn't. It was either a 301 or 305. As I said, my dad thought it was a 400 and I trust his judgment (he restored tons of classics like camaros, chevelles, and novas over his life). But now that I'm selling it, I want to be 100% confident that I'm selling what I'm advertising. As I said earlier, it's not the original engine, so the VIN doesn't help. The VIN on the engine is not legible. I tried to research some codes, but I can't get to most of where they are supposed to be since all of the parts are on the engine and it's in the car. The numbers I was able to see were these:
- "1846667P" which was underneath something that said "firing order"
- "F 218" that was below the previous number
- 6X on the heads
I don't know if any of that is useful, but I've been researching how to tell what engine this is and I can't figure it out. Any help would be much appreciated!