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Farmall M, Super M, 400, 450 & 560 Tractors, 1939-1963

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M cylinder heads

Tue May 30, 2006 7:59 am

Hi,

I have an M with a 8574 cylinder head. It is cracked in 4 places, needs all new valves, and other assorted ailments. I have the opportunity to get an 8060 head locally for a pretty good price. Could someone tell me the differences in the various heads ie. 8777,8790,6336,8060 and 8574? Are any of these interchangeable? Thanks in advance for any help.

Tom

Tue May 30, 2006 8:54 am

i only found a coupel of your numbers, but 8790 head is distillate. accoridng to my parts cd,though, 8560 and 8574 should interchange.

Wed May 31, 2006 7:25 am

Thanks for the info, John. Hope things are well in Potosi. One of my favorite places. Most of my misspent youth and middle age was "wasted" racing and riding dirt bikes through Mark Twain National Forest all around Potosi. Beautiful, but rough country.

Tom

Wed May 31, 2006 8:25 am

I guess that having spent almost my entire life in this area I never thought of it as being unusually rugged, beautiful yes, but never thought of the extremely rugged part. We just laways considered you guys wimps. :lol: :lol: :lol: :lol: :lol:
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