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Super M head

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Anonymous-0

Well-known Member
I have a Farmall Super M which has crack head casting. The casting # on this head is 8060-DC. Wondering if head casting # 8574-DC is interchangeable with the 8060-DC and will work on the Super M? The engine is a C264. Thanks for any help with my problem. Larry
 
Yes, they will interchange. I think the 8060 head is for the high compression, gasoline only engine, and the 8574 is for the lower compression distillate fuel engine. Can't remember if there might be an issue with the length of the push rods? Or maybe the rocker arm?
 

You're right. Is either of those heads actually correct for a Super M though? At what point in time did IH start using the R1 numbers?
 
Thanks guys. Sounds like I should be able to use the 8574-DC head on my Super M. I really appreciate the help in answering my questions. Larry
 
How badly is it cracked? The heads are thick and small heat cracks are common. If it does not leak, and no cracks run through a valve seat area it may be perfectly good to use. Head shops used to know this but they have dealt with high compression engines for so long most will condemn perfectly good heads.
 
On gasoline tractors in the SM and following tractors that size I think the 6 digit # followed by R1 started in late 54. Some other fuel heads had the R1 numbers before then.
Head 8060 DC and 8574 DB were SM gas heads and late late M tractors. 8574 DC was a later head used on C 264 engines used in things other than tractors.
It was also the gasoline replacement head for C 248 and also C 264 engines used in SM tractors. Late parts books will show a 6 number complete head for a gas SM but the basic head was still 8574 DC. 8574 DC and 8060 DD Started in 1955. Be interested to know what the date code on original posters 8574 DC head is, if readable.
 
Thanks Dave just checking because you never know for sure about IH stuff. Never saw a 8574 DC with a date code before 55 so just wanted to check. November 55 was after the SM, but not unusal to find. Lots of heads on those old tractors are not original. Thats the correct replacement head for a SM so no problem.
 
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