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Cummins swap and alternator ??'s

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by militaryblazer, Jan 9, 2001.

  1. militaryblazer

    militaryblazer 1/2 ton status

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    Cummins swap and alternator ??\'s

    Has anybody seen a kit to swap a cummins diesel into an older chevy truck or blazer. I saw one in a 4x4 mag a while back but have not been able to find it! and also what should the amps on a charging system be to run winch lights and stereo or cb. In the manual for my military blazer it says it only has a 100 amp charging system, i didn't think this sounds like much! It has two alternators, and two batteries!!! Military blazer with 6.2 Diesel! Sorry for long post, any help would be great!

    [​IMG]See more--&gt;<A target="_blank" HREF=http://www.geocities.com/m1009_86>http://www.geocities.com/m1009_86</A>
     
  2. Gopherkiller

    Gopherkiller 1/2 ton status

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    Re: Cummins swap and alternator ??\'s

    Boy, sounds like a coooool thing to do. The Cummings that I saw, was in a Suburban, newer style. I don't think that you could do it, and not have a outfit that you wouldn't be working on all the time though. As for the alternater, I think that that should be the least of your worrys. GOPHERKILLER
     
  3. HarryH3

    HarryH3 1 ton status Author

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    Re: Cummins swap and alternator ??\'s

    I think the easiest way to install a Cummins into a GM would be to get the engine, tranny and t-case from the Dodge and install it all in the GM. Then just fabricate the engine mounts and a crossmember. No custom adapters or anything would be needed.

    <font color=black>HarryH3 - '75 K5</font color=black>
    <A target="_blank" HREF=http://ThunderTruck.ColoradoK5.com>http://ThunderTruck.ColoradoK5.com</A>
     
  4. Cavalry

    Cavalry 1/2 ton status

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    Re: Cummins swap and alternator ??\'s

    Arent Dodge front driveshafts on the drivers side? How about a cummins/ 2wd auto tranny with a divorced 205?

    Luke
    84 K5
     
  5. HarryH3

    HarryH3 1 ton status Author

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    Re: Cummins swap and alternator ??\'s

    Don't know! I don't think I've ever even looked under a Dodge. [​IMG] That would make it a tricky swap, eh? [​IMG] I wonder if you could get a Cummins with an NV4500 on the back and swap to a GM style t-case?

    <font color=black>HarryH3 - '75 K5</font color=black>
    <A target="_blank" HREF=http://ThunderTruck.ColoradoK5.com>http://ThunderTruck.ColoradoK5.com</A>
     
  6. pcorssmit

    pcorssmit 1/2 ton status

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    Re: Cummins swap and alternator ??\'s

    Dodges had passenger side front drive shafts until the new body style in '94. The 89-93 Cummins trucks used a 205 with a 5 spd Getrag (German trash). The '94+ trucks used the NV4500 w/ an NP241 or NP241HD t-case. The best motors were the '96-early '98 12 Valves. They are mechanically injected and easy to swap.

    I have a friend that put a Cummins in a mid 80's military 1 ton Chevy. He bought a wrecked ~'92 Dodge and used the motor, 5 spd, and transfer. Everything fit pretty good.

    For more Cummins info, go to www.turbodieselregister.com

    Pete

    '83 K5, 350 TBI (ex 6.2), Dana 60/14 bolt, Detroits, 3" lift, 15-39.5x15 TSLs
    '97 Dodge 2500 4x4 CC LB Sport, Cummins 5 spd
     
  7. Emmettology 101

    Emmettology 101 3/4 ton status

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    Re: Cummins swap and alternator ??\'s

    That would be sweet, post some pics if you find them!

    Mike [​IMG]
    See <font color=green>EMMETT</font color=green> -&gt; <A target="_blank" HREF=http://emmett.coloradok5.com>http://emmett.coloradok5.com</A>
     
  8. BUDDY

    BUDDY 1/2 ton status

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    Re: Cummins swap and alternator ??\'s

    Check this out. It was pulled directly from the GM powertrain website <A target="_blank" HREF=http://www.gmpowertrain.com>http://www.gmpowertrain.com</A> two days ago, but I think that it was taken off for legal reasons or something, 'cause I can't find it anywhere today.

    ________________________________Duramax Diesel 6600
    Engine Description_________________OHV - 4 Valve - V8
    Bore x Stroke_____________________109 x 90 mm
    Displacement_____________________6.6L
    Bore Center______________________118 mm
    Maximum Horsepower______________300 @ 3100 RPM
    Torque (lb.-ft.)____________________520 @ 1800 RPM
    Combustion System________________DI diesel
    Air Intake System__________________TC air-cooled
    Injection System___________________Bosch Common Rail Weight__________________________379 kg
    Power to Weight Ratio______________.79 hp/kg

    Ford Powerstroke_________________Dodge (Cummins ISB)
    (Navistar T444)
    OHV - 2 Valve - V8________________OHV - 4 Valve - I6
    104.4 x 106.2 mm__________________102 x 120 mm
    7.27L____________________________5.66L
    122.9 mm________________________120 mm
    235 @ 2600 RPM__________________235 @ 2500 RPM
    500 @ 1800 RPM__________________460 @ 1400 RPM
    DI diesel_________________________DI diesel
    TC air-cooled_____________________TC air-cooled
    CAT HEUI________________________Bosch VP44
    422 kg__________________________437 kg
    .56 hp/kg________________________.54 hp/kg

    It was broken down in a better format on the website but the thing I'm mainly seeing is the Power to Weight Ratio. The new Duramax is lighter and cranks out more horsepower and torque than either of the other two. I know that the Duramax is brand new, but it IS a GM product, (at least 1/2. & 1/2 Isuzu), they will be in the junkyards in a year or so. You'll have either a ZF 6-speed standard or the renowned Allison 5-speed auto behind it. And you'll probably be the first to have one if you want it bad enough.

    I love the Cummins Diesel, it is a monster motor, but it's HUGE and HEAVY. There will be a lot of other things to consider if you do that swap, like beefing up your springs in front, boxing your frame, so the Cummins doesn't twist it into a pretzel, (of course you'd be advised to do that with any of these motors), the firewall will likely have to be heavily modified as well.

    The Duramax is smaller, lighter and more powerful and efficient than either of the others, so I say that unless you HAVE to get it going RIGHT NOW!! Just wait and put the new diesel king under the hood. It would be BAD ASS!!

    Sorry for the book, hope I didn't bore you guys too much.

    My two cents,

    Buddy

    I've got my dream truck and it's a 72 K-5 that is getting there!!
     
  9. NYC K5

    NYC K5 1/2 ton status

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    Re: Cummins swap and alternator ??\'s

    cummings is the best small diesel manufacturer without a doubt. you could look into getting an adapter plate made for your trany to the cummings block, then just fabricate motor mounts. im not sure what you have in there now but the cummings is a big straight six and takes up alot of room lengthwise, which you do have to consider. as for alternators military rigs use two for the redundancy factor. you cant pull as much instantanous power from an alternator as you can from batteries so i would recomend the dual battery set up and a single high output alternator for easy of setup, and cost effectiveness. to size the alternator add up the curret draw on all your equiptment that will be on at the same time and go 10% bigger. the easy way to add up your currents is to add up everything in the fuse block that will opperate at the same time
     

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