Additional Parts

[pbrawner]

I noticed that there a couple of people parting out cubs on ebay. One of the items for sale is a fast hitch. I wonder if one will fit on my 1951? Are they hard to find? Assuming they will fit how much should I be prepared to pay? I finally got my shop cleaned up so I can begin the process of restoring this neat little guy. Since the engine is frozen I am going to have to take it apart. Since I am an old hot rodder is there any information available on how much this little engine can be souped up and what parts are available for added horse power? I have not written since I went on vacation but I am now ready to get involved. More later.

[evielboweviel]

fast hitch from a cub will fit any year cub
fast hitch from a loby will fit any year loboy
the helper spring will fit on ones with two arms on the left side of hydraulic rockshaft. if you only have one arm then rockshaft and blocks can be changed out
450-550 for a complete unit with helper spring is a fair price
Ron

[Bigdog]

Ron has you covered on the fast hitch but as far as souping up the cub engine you just ain't gonna get much out of a 60 ci flathead.

[beaconlight]

Hate to disappoint you but there ain't a whole lot of souping up a cub engine. You can get a bit by changing to domed pistons. Best you can do with a whole lot of money is go from 9 to maybe 14 HP. Don't forget the block is the front frame. Too much banging around and you have a very expensive cracked block.

[Billpa]

added horsepower, 9 hp to 14 hp is close to 50% increase (nothing to sneeze at) I would be happy with that. I will bet a good hot rodder could double that with out much trouble.

[beaconlight]

Again.
Don't forget the block is the front frame. Too much banging around and you have a very expensive cracked block.

[John *.?-!.* cub owner]

I will bet a good hot rodder could double that with out much trouble.

Not without some serious rebuilding, the air and exhaust passages, both in block and manifold limit aspiration, as well as valve train. Most hot rodders get their horsepower from higher rpms, which is not reasonable on a cub if you intend to do more than ride around. Remember pto powered implements are intended to run at specific rpms, not just fly at whatever is available.

[Lurker Carl]

Horsepower is a useless number when applied to tractors. Increasing the ability to accelerate doesn't apply to a governed engine, they are designed to run at one speed. Horsepower may get you there fast but torque cuts the grass. Regardless of horsepower rating, a governed engine will operate under load at it's peak torque.

Horsepower is a calculated number designed to give the advertising gurus something to feed an unsuspecting public. Compare what a Cub can do to a 10 horsepower garden tractor - that's when the horsepower deception becomes apparent.

Can't do much to change torque output without making radical changes to the engine design. But then you have to beef up the castings and bearings and shafts and gears to handle the additional stress. After all that, you no longer have a Cub - IH called it a Super A.

[pbrawner]

Thanks for the information. Now all I have to do is take it apart and rebuild it. I really enjoy reading everyone's comments on the various subjects. Have a happy Thanksgiving.

[JimT]

I'd put a 750 double pumper Holley carb, tuned headers, roller cam, and a duel point distributer in it.

PS: You might even find a set of SS Cragers to fit it.

[Buzzard Wing]

Rick may be able to give you some tips.... I think he did something to the exhaust on 'Harley'