Lot of replacement blocks have the casting # or size # ground off for some reason. Some are restamped with numbers by hand and some not. Most don"t have a engine serial # stamped back on them. Replacement blocks can be found with C-248, C264 or C 281 cast on the side. Latest blocks I have seen were cast 10 years after they were put in regular tractors. IH sold a replacement block with casting # 365586 R1 that can be found with C-248 or C-264 or C281 on the side that uses the same sleeves as a C264 or C281. Last one I had was dated 7-5-M, 1967. Its a mystery to me why they cast C-248 on them when regular production C-248 blocks didn"t have. Figure IH decided in later years that there was no point in making 2 bore size blocks since most M tractors got changed to 4 inch bore by the mid sixtys anyway. I'm not saying that other combinations of replacement blocks don't exist, Just that some are bigger than stated.
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Today's Featured Article - Choosin, Mounting and Using a Bush Hog Type Mower - by Francis Robinson. Looking around at my new neighbors, most of whom are city raised and have recently acquired their first mini-farms of five to fifteen acres and also from reading questions ask at various discussion sites on the web it is frighteningly apparent that a great many guys (and a few gals) are learning by trial and error and mostly error how to use a very dangerous piece of farm equipment. It is also very apparent that these folks are getting a lot of very poor and often very dangerous advice fro
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