LB7 into an GMT400?

[Stepside_fever95]

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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[skylark]

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.

 

[Supercharged111]

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 ************.

 

[Jrgunn5150]

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 ************.

Yeah, I mean, cost is typically a factor, and Duramax engines are usually $$$$$$

 

[90halfton]

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.

 

[Stepside_fever95]

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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[Jrgunn5150]

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

 

[90halfton]

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

 

[SubWarrior]

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

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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

 

[timusry]

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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