You are so right, except the tractor motor has a different block, as the engine on the n series Ford tractors are stress members. But the internals are pretty much the same. The hp amounted to about 24. I love to hear those old engines run. They have a very distinctive sound. What I meant about the cars from the 40's-thru the 70's is,although they required much more maintenance, I could work on them and keep them going. These modern cars and truck have so much electronics and computer mess on them, they have left me far behind. I know you've had to keep up with it. so it's no big deal to you. I'm like the old mechanic who was talking to his heart doctor.. He said, Doc, I know you have to be pretty smart to do heart surgery. The doctors agreed. but I'm pretty daggum smart myself. Why I can completely disassemble a V8 car motor and overhaul it and reassemble it and she'll crank right up and purr like a kitten. The doctor replied, I guess you are pretty smart, but have you tried doing it while it's running.? hee hee. You probably heard this before, but if not, it should give you a chuckle..