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Thread: Cummins in a GM

  1. #1
    Join Date
    May 2006
    Location
    Minnesota
    Posts
    30

    Default Cummins in a GM

    Has many people done this to a 90's GM? and what's all involved. THANKS
    94 6.5TD K2500burb 300,000 miles /w 96 45,000 motor

  2. #2
    Join Date
    Apr 2004
    Location
    Palm Beach, Florida
    Posts
    1,816

    Default Conversion

    Being that this site is devoted to GM not much conversion talk except to DuraMax, however a search will give you some other conversion info.
    99 GMC SUB, 2500, 4x4, 6.5 TD (F) #H32 enhanced blk, Phaser timing set, B&D IC, 3" ATS exh, K&N w/prefilter, 4WD NVG 246, 4L80E kevlar Transgo off road/tow mods/B&M supercooler, 14 FF MagTec w/locker 3.42:1, 9.25" IFS frt/diff 3.42:1 w/ARB locker, AutoMeter Boost & pre-turbo pyro meter, 12,000 lb hydro winch, Warn classic bumper w/brushguard & diesel scoop, Max E-torq Stage 3, hi pop inj, oil bypass sys, on board air comp for front ARB locker & tire inflation, DynaView driving/auto-cornering lts, DZ nerfs, A/T 285/75/16 SilentArmor 3750 lb rated on 3750 lb rated Alcoa, 3 IP drivers 2 r spares.

  3. #3
    Join Date
    Mar 2000
    Location
    Hart MI USA
    Posts
    92

    Default

    Put one in my 93 k3500. I won't go back to a 6.5 again. Lots of power & no overheating. Check out www.TDR1.com They have a forum for conversions. I did my own. It was a good size project, but well worth it. You can buy most parts needed.
    Kevin

  4. #4
    Join Date
    May 2006
    Location
    Minnesota
    Posts
    30

    Default

    did you have to go with a staight axle or did you keep the independent front??
    94 6.5TD K2500burb 300,000 miles /w 96 45,000 motor

  5. #5
    Join Date
    Mar 2000
    Location
    Hart MI USA
    Posts
    92

    Default

    I kept the IFS. I lifted the body 1.25"

  6. #6
    Join Date
    Dec 2004
    Posts
    37

    Default

    I did a 3" body lift on mine. seemed to solve a few other problems at the same time. Not a bad job if you have the tools a little knowledge.
    And of course it costs more and takes longer than origionally planned. lol

  7. #7
    Join Date
    May 2006
    Location
    Minnesota
    Posts
    30

    Default

    Did you guy's use the 4L80E auto or did you use a 5sp.
    94 6.5TD K2500burb 300,000 miles /w 96 45,000 motor

  8. #8
    Join Date
    Dec 2004
    Posts
    37

    Default

    5 sp manual

  9. #9
    Join Date
    Mar 2000
    Location
    Hart MI USA
    Posts
    92

    Default

    6 speed NV5600.

    Should have gone with the Allison.

  10. #10
    Join Date
    Sep 2006
    Location
    Delaware
    Posts
    104

    Question Cummins 6BT & 4BT clearances...

    Hey guys... mainly niceguy01 & kevin,

    Where are the main clearance issues (height) for the Cummins 6BT?? Is it out front at the pully end of head to hood area?? The 4BT is a 2 cyl shorter version of the 6BT... would you have the same trouble with the 4BT??? Body lift needed??
    '96 C3500 Crew SRW, 228k, auto, 4:10, 265X75r16
    'PolarFlo' FSD Cooler
    1966? Covered Wagon 9'-10' Slide-In camper
    '03 VW Golf TDi (Stock) - +40's mpg (avg)
    "Any boy can be a Father... it takes a man to be a Daddy!"

  11. #11
    Join Date
    Dec 2004
    Posts
    37

    Default

    Too many variables. Autoworld mounts can be done with no body lift even on a 6bt. I built my own ( mainly cause Im cheap) and they are taller than thiers. I actually wanted a little lift so my conversion was done with this in mind. The body lift just makes everything from accessory drives to exhaust easier. Many have done it with none at all.
    These motors are tall. Much taller than the chevy v8's gas or diesel.
    Depending on if you are 2wd or 4wd etc.. you can mount the motor higher or lower in the frame.

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