Farmall h puller advice

Reed b

New User
I bought a 1949 h from a friend to turn it in to a puller was wondering what my best bang for my buck is our local fairs are 3750# and antique clubs are 3500# with 3.5 to 4 mph some of the fairs are open speed and rpm there is also a pure stock class at a few just want to know what motor mods and any other to start with it needs a clutch I think already Im not looking to stroke it at this point maybe in the future its just for fun Im sure it will need a rebuild but I dont have endless money to start with or so my wife says hahaha
 
It's hard to answer your question. When you want to go part way. Because when you put stock new pistons and don't stroke it you will fug ind put the tractors you think are stock aren't. So I think it's all or nothing. I know where a H is that has 125 hp. Was for sale. That's who you.will be pulling against
 
Some opinions differ but my experience is this. An H with 3 7/16 pistons & the stock carb is good for about 33 hp. I have never played with a 350 engine in an H so I am uncertain what I could get from one. Maybe someday. The main problem is you are competing against Allis WC-D17. Years ago we put wd-45 crank & pistons in a WC and had 52 Hp. A D-17 had 62 from the factory.
 
Years ago pulled an H with a 350 M&W sleeve/piston set. Had to bore the block to set the sleeves. Had a 350 LP head, opened up the carburetor a little and tuned the ignition on a dyno. Made 52 HP. Ran good enough for 3500-4500 against mostly WCs with WD45 cranks and JD Bs that were bored and stroked. This was the 80s.

Next H was 3.75x4.75 bored and stroked 1/2 inch. That was the 90s. Had lots of work to the head/carb/ignition. Made 65 HP and I was way behind the likes of big ACs, 77 Olivers and other Farmalls. Did ok in 3500-4000 but not enough for 4500.

Go to some pulls and see what is competing in the classes you are describing. If they are speed limited and most of the tractors are bumping the speed the whole way, you will know that you need at least 80-90 hp in 4500 and that may be short.
 
In it's stock configuration in truly stock classes, in any weight class between #3500 and #4500 you are in the realm of the Super C and Oliver Super 66, the only way to beat the Super Cs using a Straight H is to have the super low 1st gear, or have an Oliver Super 66. but you will have fun!
 
Suggest you tune it ,change fluids , set the wheel in close , buy a low tire pressure gage .to see where your at in the suggestions given of weight classes . Work on traction first . Go pull it .
You decide
 

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top