Chevy and GMC Duramax Diesel Forum - Reply to Topic
Duramax Engine Swaps If you have installed a Duramax in anything it was not designed for, Post it here.

Thread: 2004 silverado 2500hd 6.6 swap Reply to Thread
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  Topic Review (Newest First)
10-28-2019 05:35 AM
38PhilB. Thank you Wizard. That’s all I needed to know. If I had the space I might take it on but I definitely don’t need this kind of headache. I really appreciate you taking the time to respond.
10-28-2019 12:54 AM
mizterwizard I have personally looked into this and decided it isn't a good idea unless you really like to wrench, have lots of time and are good at problem solving. I'm sure it could be done but you would be better off getting a second job, saving the money and getting a diesel to begin with. It would be easier, take less time and be more sure. Or so say I.

Money wise this sort of thing can get out of hand very easily.
10-27-2019 08:41 PM
38PhilB. Hey there guys, I’m wondering if this swap took place? I have the same thing going on. I have a 04 2500HD 6.0 and have a line on a 03 Duramax/Allison combo with all the wiring harnesses and all that. I think the only thing that isn’t there is the driveline and the rear end. Truly wondering how much work and if it’s worth it. Thanks!
11-18-2018 08:03 AM
407driver
Quote:
Originally Posted by Reeceryd88 View Post
I have a 2004 Silverado 2500hd 6.0 vortec 4wd. I have been considering buying a duramax same year but all diesel trucks are crazy expensive. My second thought was to buy doner truck same year and body and swapping the engines. What I'm looking to know is how difficult would It really be to swap it out considering the two trucks are very similar. And if it would be worth it. Thank you everyone in advance
At the very least you would end up swapping out he entire Engine, Transmission, Fuel System, Engine and transmission wiring harness's ECM, TCM, Glow Plug Controller, the entire fuse box under the hood, rear Drive shaft Rear Differential, Transmission Cooler, Intercooler and probably the radiator etc.

Im sure there are more that you will have to swap that I do not know about.

If you attempt it it will be a MAJOR undertaking
11-17-2018 09:57 PM
Reeceryd88
2004 silverado 2500hd 6.6 swap

I have a 2004 Silverado 2500hd 6.0 vortec 4wd. I have been considering buying a duramax same year but all diesel trucks are crazy expensive. My second thought was to buy doner truck same year and body and swapping the engines. What I'm looking to know is how difficult would It really be to swap it out considering the two trucks are very similar. And if it would be worth it. Thank you everyone in advance

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