Duramax Thirdgen Camaro Swap

THEFERMANATOR

LEGALLY INSANE
Feb 16, 2009
3,890
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ZEPHYRHILLS, FL
Big blocks (cast iron block) weigh in about 600-700 depending on how they are dressed and options. Dmax engines are 900-1100 depending on what you call "dressed". All without the Allison

The 6.5 was essentially a modified small block. Same ballpark weight as a small block.

The allison weighs 330 dry. 4L80E about 150 dry.

A 6.5 weighs in around 675 IIRC with a turbo. It definately isn't based off a small block as I've got one sitting out in the shop, but I'll agree it isn't quite asd large as a big block. An iron block 454 vortec is said to weigh around 750 or so. I know that the DMAX/ALLISON package only adds 275 pounds over a 6.5/4L80E package as both myself and Gordon just down the road from me have both done DMAX swaps in our GMT-400 SUBURBANS, and we both saw weight gains of about 275-300 pounds for both trucks. I know the ALLISON is about 150 pounds of that weight gain as well. When I was researching my swap the weight I found for an LB7 was right around 825 pounds which supports my weight gains after the swap.
 

lunati397

New member
Sep 21, 2011
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from what ive found its 820 fully dressed and im using the 4l80e not the allison so there will be some freed up HP from the less rotational mass and weight loss

Thefermanator got any tips on the wireing harness
 

TheBac

Why do I keep doing this?
Staff member
Apr 19, 2008
15,599
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Mid Michigan
Well, I guess if Woods can fit a Dmax into a Fox-body Mustang then you can fit it into that Camaro. Sure is going to be an interesting car when you're done. Youve got a LOT of fab work ahead of you. Good luck.
 

duratothemax

<--- slippery roads
Aug 28, 2006
7,139
10
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Wyoming
GM says the duramax weighs 837lbs, FWIW. Even fully dressed with AC compressor, power streering pump etc I would be VERY surprised if it was more than 900lbs.
 

fast03

Active member
Jun 15, 2008
1,201
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Rancho Cucamonga
Cool project. Something I would like to do when I get some space in the garage. I can see the torque numbers being an issue with the chassis.
 

lunati397

New member
Sep 21, 2011
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I was thinking the same thing. that may cure his firewall clearance issues.

I want to do a compound setup and keep the stock one there for now it will clear the hood and be perfectly in line for the scoop on the ss hood so I might fab up a new intake horn and filter box and pull straight from the scoop if that works out ill look into a larger turbo if not then ill do a compound setup or something along those lines where 2 turbos are involved
 

lunati397

New member
Sep 21, 2011
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right now im just trying to get my hands on some DOM tubing to build the front K member Ill be pulling out the stocker soon and building a Jig from it to build my own
 

lunati397

New member
Sep 21, 2011
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got the front cross member off start building the jig tomorrow but I have to put new brakes on the wifes car and a wheel bearing on a friend bmw but after that I should have time

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lunati397

New member
Sep 21, 2011
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didnt do much today it was windy as hell and cold out but decided to strip some of the paint in the engine bay have to wait till monday to get some steel for the jig and some sheet metal to start patching and smoothing firewall

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lunati397

New member
Sep 21, 2011
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brake booster is coming off the truck and im going to swap it on with the camaro one they hydro boost is alot smaller an in my opinion i like the looks more too that will free up alot of room

got some parts to order and K member to make then ill be stuffing it back in again
 

DAVe3283

Heavy & Slow
Sep 3, 2009
3,724
292
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Boise, ID, USA
Plus, the hydroboost works better than the vacuum boost IMO. That, and you don't have to worry about keeping the vacuum pump (unless you need it for A/C controls in the cab).
 

lunati397

New member
Sep 21, 2011
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got some stuff done today cleaned the garage and worked on the jig for the Kmember still waiting on DOM tubing

half way through my bandsaw broke so I had to use the cut off wheel for the few remaining cuts I hate them because I have had discs come apart on me

but all in all got some good welds for a temp fixture lol

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:mad:

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