Farmall M pulling

Duckhunter966 · Oct 2, 2016

Hey guys I'm new here. I've got a 1947 Farmall M I'm wanting to add some more ponies to. It is partially torn apart and I was wondering what kind of adjustments and add ons would help. I'm wanting to enter it in some antique tractor pulls and in a local hometown tractor pull, as well as still use it to work. And ideas help. Thanks!
-Caleb

Oregon Tractor Jack · Oct 2, 2016

If you don't want to spend the money for a stroked crank, bored block and all the extras that go with them, just install an over sized set of pistons and sleeves. Make sure you get the high altitude or dished type piston not the flat top. Do a valve job and away you go. You will have to spend around $800 just for this much. Be careful of the "Pulling Bug". Once it bites, there is no cure. Bragging rights can be very expensive....

OTJ

PretendFarmer · Oct 3, 2016

You have to choose who you want to be competitive with. Is this going to be stone boat or transfer sled? Those two things determine everything.
My mainly stock 53 super m is very competitive with who I pull with. I haven't had the motor apart so I can only speculate that its probably got an overbore kit in with high compression pistons. Its 63 years old so its been overhauled and when the cost of an overhaul is the same for stock flat tops or overbore stepped heads, why wouldn't you want the larger stepped heads? Probably good for 55-60hp if I had it tuned on a dyno. And that's plenty for me.

rustyfarmall · Oct 3, 2016

Just as an example, my 1940 M has the 4" overbore, flat top pistons. It easily cranks 46 horsepower on the dyno. that is a full 10 horsepower more than stock.

Farmall M pulling

Duckhunter966

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Oregon Tractor Jack

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PretendFarmer

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rustyfarmall

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