Farmall Super M question

Farmall Ryan

New User
I am looking to buy a super m for pulling in amtique 5000#-6000# classes and was wondering about how much horse power I would have with 4 1/8" high dome pistons, stock stroke, shaved head, and a Baker cam. Or would I be better off doing something different? All ideas will be helpful. Thank you. Ryan
 
I would consider 4.310" - 4.375" pistons at 9:1 or 10:1 compression. That is what you are going to need to get you to 70 HP if you are running stock RPM's. Baker cam is a good choice. I don't have one but I wish I did!
 
mine with the over bored steaped head pistons on the dyno is just over 60 with stock manifold carb 6 volt ignition and worn governer so i would say with good of all those and deck the head u should be up around 70
 
If you want to go bigger, and are going to add some stroke, it seems that a little and a lot cost about the same so you might as well go for a lot. If you want to go bigger than 320 ish cubes than you might as well jump straight to 400 plus.
 
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