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Old 02-07-2007, 03:56 PM   #1 (permalink)
snikle73
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6.5 swap to duramax how involved?

how involved is doing a swap from a 6.5 to a duramax? i know at leat i will need a max harness and computer, wondering about mounts and tranny? i ccan get brand new duramax engines complete with turbos from a buddy at a GREAT PRICE, he has 14 of these still in the crate any help/info would be great
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Old 02-07-2007, 04:00 PM   #2 (permalink)
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That would be totally bad A$$ . Good luck to ya .

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Old 02-07-2007, 04:25 PM   #3 (permalink)
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i would personally use your 4l80 e with a stand alone controller then get a computer from a duramax with a standard transmission. I think it would make things alot easier........
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Old 02-07-2007, 04:36 PM   #4 (permalink)
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4l80 would work at stock HP levels but if you were gunna put a duramax in one of the best looking body styles ever wouldnt you want that duramax to have gobs of power? 4l80 could never handle serious duramax power. there would be alot involved. hopefully you do the Duramax allison conversion as there arent a whole lot out there. but there is alot of talk about it. theres a few threads about it on here. noone that i know of has done it yet on this website into a 88-98. one guy has a complete duramax that was in a fire but i dont know what became of that he intended to swap it into a suburban. theres a manual floating around on the web somewhere good luck.
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Old 02-07-2007, 08:40 PM   #5 (permalink)
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thanks for the info, i was told that the allison tranny would hit the trans tunnel??? somthing about needing a body lift to make clearance?? this is the kinda thing im trying to check before i do it, im not gonna do anything to the max leave it stock, would like to use my tranny if i could and maybe have it built if possable????
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Old 02-07-2007, 08:44 PM   #6 (permalink)
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when you say use my 4l80 e with a stand alone controller , what is the stand alone controller? any any clue on where to find suck manual about doing the swap? so im guessing the 4l80 will bolt up to the duramax?
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Old 02-07-2007, 08:48 PM   #7 (permalink)
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I would think the biggest challenge is getting the gauges to work.
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Old 02-07-2007, 09:33 PM   #8 (permalink)
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I wouldn't worry about the trany tunnel, raising the tunnel area would be simple compared to the rest.
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Old 02-07-2007, 10:25 PM   #9 (permalink)
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heres a link to a thread I started on the same subject.
http://dieselplace.com/forum/showthread.php?t=124380
I decided not to do the swap because of the cost and fixed my 6.5 instead. Plus I havent found a suitable donor vehicle yet.
You can go with manual tranny and not worry about the body lift, I think. I think I would steer clear of the 4l80e tranny. You will need to find someone to program the ECM to ignore some of the other control modules you wont need on your truck.. If you have a 95 or later model truck, you can exhange the entire dash and body control modules with minor modifications. You can exchange the entire dash and body control modules in older trucks, but it requires major farbrication. There is a manual available to aid in the conversion.
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Old 02-07-2007, 11:33 PM   #10 (permalink)
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I saw the manual today from the********** to convert. They did it before.
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