OK, I just got back bleeding hands and all. I have the manifolds and carbs! The head measures a little over 30". This is a twelve port engine, big ports. I could not see numbers. There is a compressor where the might be. There is a flat behind the breather/oil filler tube but I could not see numbers. There is something about nickel cast into the driver side. I took the tag that says,"WARNING This engine is equipped with a high compression cyl. head-use only with special fuels or at high altitudes" The carbs are Ball & Ball Made for Chrysler Corp. I'm trying to get the entire engine, don't know if I can, but another 5th of rum, and a few more knuckles will score the head. I have driver by this thing for over 30 years! What do you think?