v6 to 6.0 swap issues
03-06-2013, 12:23 PM
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v6 to 6.0 swap issues
So I bought a a 2002 yukon denali for the engine and tranny the dude told me it was 2wd I come to find out its awd will this all swap over to my 2003 silverado single cab short bed? Or csn I just remove the front transfer case and keep it rwd?
Also the throttle body on the 6.0 is electric and the one on my 4.3 is cable driven any suggestions on how I can get thst work? Can I remove the pedal sensor and plug it it up to my truck? The denali has everything in it harness pcm everything
Also the throttle body on the 6.0 is electric and the one on my 4.3 is cable driven any suggestions on how I can get thst work? Can I remove the pedal sensor and plug it it up to my truck? The denali has everything in it harness pcm everything
03-07-2013, 01:50 AM
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oh man you're gonna need a lot of stuff to get this to work. First of all you need a o3/04 harness tac module, and gas pedal. the o2 denali harness wont interface with the existing wiriing without a bunch of modification. Also you need 2wd v8 motor mounts. I believe the 4x4 v8 mounts are different.
03-07-2013, 02:57 AM
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My silverado is an 03 the denali is 02 so wouldnt my harness tac module work? I also have the gas pedal with the sensor and harness I have the whole truck for parts 
I have all the harnesses and the v8 awd mounts are the same so are the tranny mounts I was gonna swap the entire awd system to my silverado but its too much work I will just remove the transfer case put the end of another tranny on hook up the u joint then the drive shaft and I should be good too go only problem is that this 02 .6.0 has an electric throttle body will my 4.3 bolt up to it?
I have all the harnesses and the v8 awd mounts are the same so are the tranny mounts I was gonna swap the entire awd system to my silverado but its too much work I will just remove the transfer case put the end of another tranny on hook up the u joint then the drive shaft and I should be good too go only problem is that this 02 .6.0 has an electric throttle body will my 4.3 bolt up to it?
03-08-2013, 06:00 AM
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The o2 stuff won't work in your 2003 truck. In 2003 gm changed a lot of the wiring also the way the modules talk to each other is different. All that stuff you have from the 02 will only work if you have a 99-02 truck, not 03.
To get this motor in your 03 you have to ditch the dbc and pick up a complete harness out of a 03-04 truck, gas pedal, tac module, and DBW throttle body. Again from an 03-04 truck.
If you want to run the Denali stuff as is. Be prepared to swap everything to your 03 truck. You'll need to change out the engine harness, interior harness, door harness, hvac harness and maybe then you'll be able to use your 02 denali stuff in your 03 truck.
To get this motor in your 03 you have to ditch the dbc and pick up a complete harness out of a 03-04 truck, gas pedal, tac module, and DBW throttle body. Again from an 03-04 truck.
If you want to run the Denali stuff as is. Be prepared to swap everything to your 03 truck. You'll need to change out the engine harness, interior harness, door harness, hvac harness and maybe then you'll be able to use your 02 denali stuff in your 03 truck.
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