Cummins Tractors LONG POST

I just got this month's issue of DIESEL POWER and in it (pg 118) there is an article called Swap a Cummins Into Anything. After reading it that got me thinking, could one swap a 5.9 12 valve Cummins into a W series Allis-Chalmers tractor? I have seen several that have had a V8 swapped in but never a diesel. If it could be done I would like to eventually try it on my 1941 WC. The motor in it is shot and since I already have a stock unstyled WC I wouldn't need for it to be origional. I found out that I could pick up an old 12 valve engine for at the most, in perfect shape $2000. I would think that the 1989-1993 (first gen) Cummins would be the best because it is mechanically controlled and they don't have any complicated fuel or timing controls which would end the need for several computers and wiring hookups.

That version of Cummins I believe puts out 120 horse on the PTO. WC gonna need some triples on the rear and another WC worth of weight to use that kinda power.

You wouldn't be able to keep anything together with that torque off a 5.9, or at least if you turned it up at all. 

I do think that the 3.9 4bt would be a better choice as they still put out somewhere in the neighborhood of 140hp stock with turbo and have been turned up to 700hp before. 
Problem you are going to have is probably height of the motor. 

I found a 4bt on Craigslist for $2500. That might not be too bad with their rise in popularity. I won't be able to fund this project for a couple of years so I'm just getting numbers and plans.  

Just remember that a 10% increase in torque will cut your drivetrain life in half.  A lot of people make engine conversions, but it's more for show than go.

Doubling or tripling the torque will likely cause almost immediate failure if the tractor gets hooked up.

Someone in Ia did the articulated WC with a 262 turbo motor from a D19. I've seen it on the Great Iowa Tractor Ride several tiems.

427435 wrote: Just remember that a 10% increase in torque will cut your drivetrain life in half.  A lot of people make engine conversions, but it's more for show than go. Doubling or tripling the torque will likely cause almost immediate failure if the tractor gets hooked up.

Maybe this is true, I don't know but then how do the Super Stock pulling tractors make it down the track with the sled and all the weights on the tractor.  They are defiantly double or triple the torque and hooked up.

I would like to put a 4bt in a WD 45 to pull. A open class with about 3/8 tread not over 4500 lbs.

Indeed they did Dream!If I remember right,they started on gas and switched over to "D" after a lil warming.