The first step would be to measure the length of the head. that will tell you if you are dealing with a small block (23" is the 218/230cu" small block) or big block (25" is the 250/261 big block). Then with the Big block motors there are qutie a few versions ,especially with the industrial types, combines, stationary (pumps) etc. The big block is more valuable, as some of the guys are Hotrodding there Dodges and Plmyouths by installing the larger Bog block where a small block once lived. Try posting at P15-D24.com on the message board. I'm sure one of the old boys ther ecan help you out. From what I can see in the pcts, at least the motor w/o carb is industrial type, can;t see the other one very clearly
