Difference between Allis Chalmers B and C

Jim R · Apr 5, 2011

I have acquired an Allis Chalmers "B" tractor, that was allowed to freeze up and now it has a cracked head and possibly the block too. If I decide to look for a whole engine for it, will a Allis "C" engine work? What is the difference between the "B" and "C", is it just that one is a wide front and one a narrow front? Where would be the best place to look for a complete engine? Thanks for any response!

Anonymous-0 · Apr 5, 2011

You can use the engine from a B,C,orCA. They are all the same block. Some early ones had smaller pistons but most have been upgraded to the larger cubic inch displacement. The B was what was called a one row tractor and the C had a wider rear end and called a two row tractor. B used the wide front end some with the solid axle and some adjustable. The Cs were mostly narrow front end but there were some wide fronts available as an option. I have both style B axles and both style C axles.

steve(ill) · Apr 5, 2011

the rear alxes and housings are different. the rear wheel hubs are different, the front axle is different, and the steering box is different. They share the same motor, radiator, clutch, bell housing, transmission, pto, hydraulics, brakes, gas tank, hood, battery box, wheels and tires.

BushogPapa · Apr 6, 2011

At the Fall Calvin Show here in Ohio, an old fellow had what looked like a Heavy-Duty "G"..
It had AC "B" Final Drives and Transmission, Live Hydraulics and a modern injected auto engine.
Very, Very nicely done..!!!
I should have a couple pics, somewhere of it..

Difference between Allis Chalmers B and C

Jim R

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Anonymous-0

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steve(ill)

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BushogPapa

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