Looking at a 1968 Firebird. It has a 400 YE block, but a standard hood (no scoops). It's badged as a 400, but I think it was originally at 350. How can I tell without running the PHS (they're closed).

Thanks!

This is what I found from Wallace racing:

Year Engine HP Engine code Trans CR Cam Head Code BBL Carb No. Misc
1968 400 340 HP YE A 10.5 066 16 1-4 7028264 Block Casting # 9790071
1968 400 340 HP YE A 10.5 537441 15 1-4 7028262 Late year change. Block Casting # 9790071

Looks like you have a 400!! If you get the other num beside the YE code (engine block) and the VIN you can verify if it num matching that car.

My car is a 400 HO and it has a 350 hood. Accident years ago wrecked the hood (not me).

Thanks Gus! That seems like the start of good news! I'll post some pictures if the deal works out!

Good luck!