I've got a 350 in the garage that I picked up a while back just to mess with. I finally got around to taking it apart and now I'm trying to figure out what it might have come out of! Here's what I've found so far: Castings marks say 5.7LG - Block is a 14093638, just your run-of-the-mill 87-95 350. The heads are also pretty generic - 14102193, 87 and up. It has a factory roller cam. The odd thing is that the oil pan has a threaded bung, about 2 inches above the oil drain plug, and there is also baffle inside to help keep oil in the sump. The pan appears to be a GM factory part. Any ideas what this thing might have come out of???? Also, is there any way to ID the roller cam? I don't see a part number on it at all.