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post #1 of 22 (permalink) Old 03-05-2016, 11:59 AM Thread Starter
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V6 to V8 Swap

Anyone know what's involved with this swap beyond the obvious engine harness/pcm and drop in mechanical parts? Is there interior wiring harness changes needed? If it's engine bay work only...that's pretty managable. I'm mostly concerned about the interior work.

I've searched everywhere and can't find anything on it other than Hazer did it but can't find any details.

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post #2 of 22 (permalink) Old 03-05-2016, 03:05 PM
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There is an entire thread on the site about it.
Search for it.

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post #3 of 22 (permalink) Old 03-07-2016, 08:13 AM Thread Starter
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The thread I read had no details. I all ready stated I searched lol

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17 SS Red Brembo's
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post #4 of 22 (permalink) Old 03-08-2016, 03:26 AM
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Type in Hazer Oreo in the seach box at Top. and all the threads on it come up.

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post #5 of 22 (permalink) Old 03-08-2016, 01:44 PM
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Yeah that's the guts name.

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post #6 of 22 (permalink) Old 03-09-2016, 09:04 AM Thread Starter
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I read all through that thread before posting but didn't see any meat and potatoes on the actual electrical stuff needed to change. Just lots of pictures of the engine. Maybe I missed it but just didn't see any details other than stuff he was doing to the engine itself.

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post #7 of 22 (permalink) Old 03-09-2016, 10:24 AM
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Send him a private message,and see if he responds.

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post #8 of 22 (permalink) Old 03-17-2016, 09:55 AM Thread Starter
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Did that first, never replied. I've been looking at diagrams. The stupid external tcm is the trouble maker.

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post #9 of 22 (permalink) Old 03-17-2016, 08:41 PM
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post #10 of 22 (permalink) Old 03-28-2016, 12:50 PM Thread Starter
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I've been comparing some wiring diagrams...mainly the engine harness to body harness connector. Lot's of differences. Looks like a fair amount of wires can be moved within the plug to connect correctly the engine harness, some are just not needed(trans stuff) and a couple would need to be added(heated O2 wires).

I guess in general, a interior harness needs swapped also to do a real nice clean swap.

Mods:
14 Chevy SS Aluminum Front Suspension Swap
14 SS Front Sway Bar(26mm)
14 Chevy SS Rear Subframe/Suspension Swap
14 Chevy SS Rear Sway Bar (28mm)
14 Chevy SS Wheels Charcoal Powder Coated
17 SS Red Brembo's
3.27 SS Rear Diff
Super Pro Poly Radius Arm Bushing
BMR Poly Front LCA
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Pedders Springs
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post #11 of 22 (permalink) Old 04-11-2016, 10:33 PM
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I know this thread is kind of old already but if u want to actually talk to a guy who has done it before ther is a guy in Colorado who build Utes just search Utes in Colorado and it shud come up I think his name is randy.. Bt I'm not completely sure about tht.. Bt I ws looking in to it once and he told me he sed if u wanna do it basically ur gonna have t find u a wrecked one with th v8 and swap all th parts over.. If I recall correctly he sed stuff tht needs to be changed is radiator fuel lines power steering pump engine bay wiring harness a/c pump idk js lots of other little stuff if u gt a hold of him he's extremely nice t talk to he'll give u a full run down on it!
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post #12 of 22 (permalink) Old 04-12-2016, 09:59 AM Thread Starter
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Originally Posted by Michael09g8 View Post
I know this thread is kind of old already but if u want to actually talk to a guy who has done it before ther is a guy in Colorado who build Utes just search Utes in Colorado and it shud come up I think his name is randy.. Bt I'm not completely sure about tht.. Bt I ws looking in to it once and he told me he sed if u wanna do it basically ur gonna have t find u a wrecked one with th v8 and swap all th parts over.. If I recall correctly he sed stuff tht needs to be changed is radiator fuel lines power steering pump engine bay wiring harness a/c pump idk js lots of other little stuff if u gt a hold of him he's extremely nice t talk to he'll give u a full run down on it!
Interesting...found it. It's lefthandutes.com

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17 SS Red Brembo's
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Super Pro Poly Radius Arm Bushing
BMR Poly Front LCA
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post #13 of 22 (permalink) Old 05-10-2016, 02:22 AM
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A friend of mine is Australia bought a wrecked V8 ute for 7k, swapped everything over then sold off the rest of car and his v6 stuff for around 3k. Ended up costing him $4,000 AUD and took him three days to do. Had to swap over pretty much everything.
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post #14 of 22 (permalink) Old 05-10-2016, 05:41 AM
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The easy way to do the swap is at a dealership. It's called a trade in.
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post #15 of 22 (permalink) Old 05-10-2016, 10:40 AM
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Just a little tidbit I noticed during my engine swap is the BCM works fine with the ECM removed. Also if getting rid of the electronic trans its easy to jump the GMLAN pins and flash a manual file so it runs fine. These cars aren't very complicated you can do pretty much whatever you want if you have the desire.

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post #16 of 22 (permalink) Old 07-21-2018, 07:21 AM
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Originally Posted by GJD5 View Post
I've been comparing some wiring diagrams...mainly the engine harness to body harness connector. Lot's of differences. Looks like a fair amount of wires can be moved within the plug to connect correctly the engine harness, some are just not needed(trans stuff) and a couple would need to be added(heated O2 wires).

I guess in general, a interior harness needs swapped also to do a real nice clean swap.


No interior harness needs to be swapped, just engine bay harness, well that technically runs inside and connects up in passenger side footwell. The external ecm for the v6 is in the same spot, that can be torn out.

You will also need the engine harness. It’s all mostly plug and play.

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post #17 of 22 (permalink) Old 07-21-2018, 09:48 AM
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The easy way to do the swap is at a dealership. It's called a trade in.
Amen, brother....case closed
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post #18 of 22 (permalink) Old 07-21-2018, 10:18 AM
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Amen, brother....case closed


Where’s the fun in that?

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post #19 of 22 (permalink) Old 07-21-2018, 10:27 AM
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Where’s the fun in that?


Exactly, I bought my V6 G8 with the intention of putting in either a LV3 or L83 leaning more towards the LV3


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post #20 of 22 (permalink) Old 07-21-2018, 10:46 AM
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To each his own.
I don't have the ability never mind the money and space to do this but if you want to give it a go don't let my comments deter you.
Even Hazer at one point made the comment if he knew what he was getting into he probably just would have gotten a GT.
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