Yes, the crack is only in the water jacket. the stud holes are not even close to the crack (relatively speaking).
Since the rest of the engine is in such good shape (ie. sleeves are excellent, pistons, rings, bearings, etc.) I think I will go ahead, and install this on the B, and put her back together. I will certainly clean things up a bit, but worst case, if it doesn't work, I will have only invested time, and a few gaskets.
It does appear that this one was running for awhile with the crack in existance, as the "stain" on the head gasket would seem to indicate that. If that is truly the case, it makes me wonder how many other internally cracked blocks are out there, and since they are not leaking, no one is the wiser.........
I do appreciate everyones input, and if anyone else has experience with this or other suggestions, i welcome them.
When I get this all put together, I will report on the results.......hopefully, it will be a good report.
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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