... One thing that may help lock down the engine ID detail is to locate the casting date codes on both the block and head. For the block, those should be behind the starter mounting location on a level with the casting number you found and reported above. On the head, you will need to remove the valve cover as the date casting code info is on the top surface of the head just inside the valve cover sealing surface.
Thanks Gdads51. I will locate those dates stamps.
