I'm always interested in trying to learn more about the IH part numbers. I have an original Super C parts catalog. It shows the crankcase casting number to be 354898, whereas the parts CD I have does not show that number anywhere. Neither the CD or the old original parts catalog show the 251172 casting number for the super C head. There are several different heads shown for the Super C in the CD, but none have that 251172 number. I have a C tractor (not a super) and it has the 251172 head on it. So go figure. Maybe the head for yours is original, they just used some leftovers from the C run, or someone changed your the head on your tractor. This is sort of an aside, but I also have a U-2 power unit. The location where the casting number is usually was ground off. When I took the head to the machine shop, they asked what is the head number. I said well, the part catalog says ##### ( can't recall the number) but I don't see that on this one anywhere. The machinist took a wire brush and knocked off some of the crud and says this head has been to the shop before as there is a stamping here. It was the head number listed in the parts catalog. So IH made some modification (or maybe not) and stamped the number to match the parts info.
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Today's Featured Article - Gettin My Old Tractor Home - by Clayton Sweeney. My name is Clayton Sweeney. I am from Southern Maryland in a small town called Lothian. I am 20 and my father and I are the proud owner of a 1954 Allis Chalmers WD-45. When I was 18, I dated a girl in the next county over. Her family are tobacco farmers. It was a cold Thanksgiving evening, and we were going up to her Grandparents house. As we passed one of their barns, I noticed something orange in the corner of my eye in this old shed. It was pretty dark and I asked what it was
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