Cummins in Dodge M37

[Jesse19rap]

I've recently come across a good deal on a 4bt-390 cummins non-turbo out of a skidster or bobcat. Unfortunately I do not know that much about the Cummins engines. Would this motor have enough power to get the truck up and down the road comfortably? My 230 is complete junk and when i pull it out I was thinking either a Cummins or 350. My uncle said he has a high performance 350 he'd give to me so free is always intriguing. If you had the means to have/put one of these two motors in the truck which would you recommend? I appreciate any and all advice.

 

[Bill W]

Cabell did the Cummins conversion on his M-37 years ago and documented it on his website http://www.garbee.net/~cabell/

 

[camoyj7]

The 4bt cummins 3.9 and a spicer 3053 5spd out of a deuce would be a great swap in you m37.

 

[rtk]

Charles Talbert ,of M series Rebuilds has been doing the 4BT repower for years , might want to give him a call . IMHO , If I were doing the repower I would go with the Cummings .

 

[Jesse19rap]

Camo,
How difficult is it to mate the Spicer 3053 to a Cummins? Have you seen this combination done?

Rtk,
I've spoke with Charles, he is a wealth of knowledge and the truck might end up down there some day.

 

[camoyj7]

My friend is putting a 5.9 cummins in a deuce frame right now. He's using a cummins #3925223 sae#3 flywheel housing. A cummins #3935205 sae#3 flywheel and a Napa #MBI RC2077136X clutch. The 4bt and 6bt share the same flywheels and housings.