LB7 into an GMT400?

Discussion in 'Engine Performance + Maintenance' started by Stepside_fever95, Nov 20, 2016.

  1. Stepside_fever95

    Stepside_fever95 I'm Awesome

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    Has anyone on here ever done a LB7 Duramax swap into a GMT400? I'm kind of playing with the idea of swapping one in my 99 Suburban.

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  2. skylark

    skylark I'm Awesome

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    Look up fermenter here and on dieselplace. He swapped a duramax into a 400 suburban. There is also a guy in dieselplace that is called duraburb.
     
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  3. Supercharged111

    Supercharged111 I'm Awesome

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    I know a fellow racer who did it with an LB7 and he also integrated the BCM. I asked about his swap and read about another and both seemed happy with the swap, but would not repeat it. Apparently it's a real ************.
     
  4. Jrgunn5150

    Jrgunn5150 Enjoying tomorrow's success today

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    Yeah, I mean, cost is typically a factor, and Duramax engines are usually $$$$$$
     
  5. 90halfton

    90halfton I'm Awesome

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    Seems like by the time you're done you could have bought a Duramax pickup and just drove it. Unless you have alot of money and are doing it for cool factor, in which case, that is awesome and I can't wait to see it.
     
  6. Stepside_fever95

    Stepside_fever95 I'm Awesome

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    Yeah, it was just an idea I had. I like everything about a gmt400 more than I do a gmt800. I'll probably just stick to the lq9 idea engine wise. Nobody would expect a duramax suburban though!

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  7. Jrgunn5150

    Jrgunn5150 Enjoying tomorrow's success today

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    It would be nice for sure, but at least, bare minimum , 5 grand to do and I bet easily double that.
     
  8. 90halfton

    90halfton I'm Awesome

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    Is your suburban a 3/4 ton I hope? Awful lot of weight in the front of a half ton.
     
  9. SubWarrior

    SubWarrior Newbie

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    Ive thoroughly researched this. A Duramax gmt400 suburban would be so F!@#ing cool. I only know of 1 in existance.





    It can totally be done, but it will take time and skill to do it right. You will pretty much need a wrecked truck to be a donor since there are a lot of parts involved. I REALLY wanted to do this but have decided that a beefed up small block or ls swap is far more feasible and affordable.

    Here are some links that may help:

    http://www.thetruckstop.us/forum/threads/95-suburban-to-a-01-duramax-allison.10142/

    http://www.thedieselpage.com/duramaxconversions.htm
     
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  10. timusry

    timusry Newbie

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    You could check out Copart for a donor vehicle. Not sure about your state requirements on buy a salvaged vehicle though.

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