#68959 - 03/10/12 07:18 AM
Engine and Trans match?
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Jerome
Active BB Member
Registered: 10/10/10
Posts: 8
Loc: NE/WY/CO
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Hey guys,
Pretty new to the site and have a question. Been reading a lot about the 4200 vortec and the colorado transmission matching up... checking to see if anyone knows if the 2008 trailblazer vortec matches with the 2006 gmc canyon manual trans for sure? Not keen on doing a $2000 gamble...
I am possibly looking at putting this combo in my 83 C-10 RWD truck that I am working on rebuilding... is this feasible?
Thanks for any imput.
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#68965 - 03/10/12 11:45 AM
Re: Engine and Trans match?
[Re: limequat]
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Jerome
Active BB Member
Registered: 10/10/10
Posts: 8
Loc: NE/WY/CO
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thats the motor with 58k miles and the transmission with 24k miles. 
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#69000 - 03/12/12 09:29 AM
Re: Engine and Trans match?
[Re: limequat]
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Jerome
Active BB Member
Registered: 10/10/10
Posts: 8
Loc: NE/WY/CO
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I am not sure. I am leaning toward possibly replacing the 250 I6 to a 292 I6 and then not worrying about the rest of the drive shaft and transmission wiring stuff. Plus I still have the novelty of a beautifuly carborated engine. i just gotta search on here to see what I need to do to get the max HP out of the 292.
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#69017 - 03/12/12 09:17 PM
Re: Engine and Trans match?
[Re: limequat]
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Jerome
Active BB Member
Registered: 10/10/10
Posts: 8
Loc: NE/WY/CO
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Are the mounts on the 4200 vortec the same as the 250 I6? I am checking to see if I do need to actually change the transmission, or what adapter could I use to achieve this? I am not sure what transmission I am using as it isn't what came stock in my chevy.
It is currently a manual 4-speed and my truck came stock with a 3-on-the-tree.
Anyone know?
Edited by Jerome (03/12/12 09:18 PM)
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#69029 - 03/13/12 08:59 AM
Re: Engine and Trans match?
[Re: limequat]
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Jerome
Active BB Member
Registered: 10/10/10
Posts: 8
Loc: NE/WY/CO
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Limequat,
are the 2008 and 2006 engine wiring harnesses the same?
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#69034 - 03/13/12 12:30 PM
Re: Engine and Trans match?
[Re: limequat]
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Jerome
Active BB Member
Registered: 10/10/10
Posts: 8
Loc: NE/WY/CO
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I've decided to just go with the 4200 vortec. After hearing so many positive comments about it, I think it will be worth the extra work. The 2008 engine I am getting has everything except the wiring harness. The only wiring harness I can seem to find is one on e-bay for an 06. I have called many, many, many local salvage yards and can't find any wrecked envoy/trailblazers.
Will the 06 harness work for the 08 engine?
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#69037 - 03/13/12 05:00 PM
Re: Engine and Trans match?
[Re: efi-diy]
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limequat
Active BB Member
Registered: 08/28/06
Posts: 144
Loc: Detroit
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Welcome to the darkside, Jerome 
As far as the harness goes, there's always changes year to year in the connection to the electrical box.
Also, in later models they they changed from a 8 pin to a 6 pin connector on the throttle body. Worst case you'd have to repin it. If you want a lime-swap harness, I'll fix you up. Otherwise, PM me and I can walk you through whatever needs to be done. No big deal either way.
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#69038 - 03/13/12 05:41 PM
Re: Engine and Trans match?
[Re: limequat]
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Jerome
Active BB Member
Registered: 10/10/10
Posts: 8
Loc: NE/WY/CO
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You guy's are awesome. Thanks for all the help so far.
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