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Recent content by jon aller

Yesterday's Tractor Forums
  1. J

    Farmall h puller advice

    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...
  2. J

    Sigourney pull 2021

    Pullers come a great distance and want to hook. The Expo wants to raise funds for their youth programs. It is a confluence of desires that satisfies both needs. Scott, Alison and all involved are doing fantastic work.
  3. J

    farmall H motor build

    To in stall the factory 350 sleeves and pistons, you will need to bore the block. That would get you to 175 cid and if you tune it right, ~50hp. It would do well in 3500 to 4500 classes. You will be short on power beyond that weight, unless you have a picker low. My first H was that setup...
  4. J

    Vic S

    First H puller was a '39 with M&W S&P set for a 350. Used 350 dist head and made 50 hp at 10% over stock RPM. That included opening up the venturi and jets in the carb, rebuilding the distributor to ensure proper function. When I built the second H, I talked to some speed shops that built...
  5. J

    competitive budget pullers

    More information is needed; Sled or stone boat Rules, Rules, Rules????? what can you do to the tractor, how new/old of tractor, what can you do to the tires?
  6. J

    Building a farmall 350 motor on a budget

    As to your offset grind question, you will only get the amount of the offset for stroke increase. And that will not be enough. You will need 3/4 to 1 inch of stroke to make 5500 competitive. My last engine was 3.75 x 4.75 (210 cid) and I could handle 4500 in low. Made 65 hp at 10% over stock...
  7. J

    Building a farmall 350 motor on a budget

    How much of the work are you able to do? What rules/style of pulling will you be competing?
  8. J

    Farmall 300

    First puller was an H with 350 M&W pistons and 350 LP head. Made 52 HP on dyno once dialed in. Don't know what or if you will be pulling this. If you are, make sure to go through the drive line looking for bad bearings, dragging brakes, etc. Make sure to totally clean your factory air...
  9. J

    roller rockers

    You didn't say what has already been done to your engine. My last H had 210 cid, 3.75x4.75 and was almost always the smallest engine on the track in my classes. I had stock 350 cam, mild head work with slightly larger valves and the ports cleaned up. I was running .027 quench with flat top...
  10. J

    NATPA Division 5. Low Numbers

    No worries. I agree, Sigourney is a great pull!
  11. J

    NATPA Division 5. Low Numbers

    More correctly stated is that NATPA DIV 2 through 4 preaty much run Sigourney's rules. Sigourney predates NATPA and two of the founding "fathers" of Sigourney's pull were on the original NATPA rules commitee. Your fun fact for the day :-).
  12. J

    NATPA Division 5. Low Numbers

    No horse in the game, just curious. You said no RPM checks. How much safety equipment is required?
  13. J

    Rocker Arms

    My last puller was an H with 3 3/4 bore and half inch stroker. Just 210 cid and very much smaller than all the WCs that I pulled against. I made my own high lift rockers by cutting half way through the short side of the bottom of the arm, near the adjuster. I squeezed the gap together and...
  14. J

    Farmall h up grades

    If you want temporary power boost just for pulling, unhook the air pipe at the air cleaner and loosen the generator/alternator belt. Set your timing and adjust your carb on a dyno. Gat a couple larger ventures and play with them on the dyno. If you can't make it smoke by adjusting the load...
  15. J

    Any tips for a stock farmall h

    Run a compression check to determine a baseline of the health of the engine. Adjust the valves to factory spec and run the compression check again. If the engine was ever overhauled with larger pistons, you might benefit from a larger venturi in the carb. Those are easily found at junk yards...
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