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D600 Cummins conversion

Discussion in 'Classic Dodge Trucks - Pre 1981' started by stevecody62, Mar 12, 2018.

  1. stevecody62

    stevecody62Member

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    Does anyone know what would be involved with swapping a 361 with a Cummins motor in its place and what would have to be done to make a NP 540 new process transmission work with the Cummins bolt pattern or if it’s even possible without spending mega bucks for a custom adapter.
     
  2. LocuMob

    LocuMobFluid Technician

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    Sneaky guy! I only know about swapping a Cummins into a D300. A guy on FCBO did one recently, not too much Fab work. Think he used the stock transmission from an 80's- early 90's.
     
  3. 7mopar

    7moparWell-Known Member

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    Personally would find a donor vechile 93 or older to remove complete power train from and any mounts required. No reason to make this a headache conversion if you do not need to. Also better take the rear axle gears into consideration. If lucky the D600 has a 2 speed to get it moving with the 361 and get it down the road at reasonable rpms.
     
  4. paul massaro

    paul massaropomonamissel

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    thought the cummins was longer then the space . some firewall mods are needed . your 361 bell won't work , that newer cummins can be had complete . try for a turbo'd unit , maybe an allison auto you'll be happier .
     
  5. stevecody62

    stevecody62Member

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    Ive been trying to find a 12 valve cummins nv4500 2wd donor vehicle thats wrecked or just rusted out for a descent price but its easier said than done
     
  6. paul massaro

    paul massaropomonamissel

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    well this weather should bring more . misfortune could be your prize .
     
  7. stevecody62

    stevecody62Member

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    Hopefully, been keeping my eye out on Craigslist hopefully one comes along