Thanks Strokerscamp! I was under that impression also. I picked the car up fairly cheap and was going to us the LBP power brake set up for my 71 duster. The 74 is in decent shape so....look's like I picked up another project.
318 is stamped on the the block and a X on the out side of the head...Yep! Just asking has anyone seen this before. I'm sorry for not relaying that I know its not original. Just thought it was odd.