A vs SA vs C

[wamdog]

Hello. New to group and Farmalls. But not new to tractor resto. I have a 41 Allis B I did few yrs back. I’m doing a 40 Farmall A and was thinking of changing block to Super A for hydro. My question is since I’m going this far I would opt for more HP of the Super C. Does anyone know if the C would bolt to my A torque tube bell housing? Possible other fittment issues?

Thanks
WAM

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

If you are going to install touch control you also need torque tube. There is no place for it on A, only SA.

[wamdog]

So the torque tube is diff, maybe its not worth it, but that's exactly why I purchased a set of the heavy duty super A fenders to mount the lift mech
thanks.

[Don McCombs]

My personal opinion is that you'd have less aggravation and expense finding a Super A and cashing the A out.

[Super A]

There are significant differences between the A and Super A from the flywheel back. Different torque tube, different fenders (needed to support rear rockshaft) different finals and implement mounting holes. I would do what Don says if you want a Super A. Now, you can bolt a Super A, C, Super C, etc. engine to the A torque tube with no issues. I have a friend with a Super C that he tractor pulls with that has a C-153 engine bolted to it, IIRC the only real issue he had was the exhaust hole in the manifold had to be moved to use the stock Super C hood. Unless you looked closely you wouldn't recognize the bigger engine.

Al

[wamdog]

Thanks Guys, its always been some type of disease for me to put bigger motor on smaller unit.

eg. I think it started when I was a kid, stuffed a bigger motor on my dirt bike chassis.
then my Dad's 1968 Sears Super SS 12, cut the hood a little and put a 18hp OHV.
next was a Ski-Doo Blizzard 5500 snowmobile cut the hood out and put a Yam 900 twin drag bike motor.
lastly was an 84 HD Sporster, cut frame in half and stretched 8" stuffed 96" stroker motor 280 rear tire.

WAM