Would a 6 speed to 8 speed/LFX to LGZ swap be feasible in the future? - Chevy Colorado & GMC Canyon
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post #1 of 17 (permalink) Old 04-17-2017, 09:17 AM Thread Starter
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Would a 6 speed to 8 speed/LFX to LGZ swap be feasible in the future?

Purely hypothetical here. Obviously I'm not going to specifically go out of my way to do this swap. But, if say, the old LFX and 6 speed were to go out at some point, do you all think it would be feasible to swap them for the 8l50e and LGZ? I'd imagine that there would need to be some work done to the ECM/TCM. Not sure whether it would only require a reflash or a complete replacement of them. Thoughts?

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post #2 of 17 (permalink) Old 04-17-2017, 11:10 AM
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I'm sure it could be done. For a price.
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post #3 of 17 (permalink) Old 04-17-2017, 11:22 AM
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Think I read somewhere that the bell housing bolt patterns where different between the two.

On Edit: Never mind I first read this and thought the OP wanted to put the 8 spd. behind the LFX. I need better reading comp. LOL

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post #4 of 17 (permalink) Old 04-17-2017, 11:24 AM
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There would have to be a lot of research including engine/transmission mount locations and drivehaft length. If someone was going to drop a completely different engine set-up in a 2015-2016 twin, heck with a V-6 if it is going to require mods. Has anybody dropped a v-8 in one of these?

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post #5 of 17 (permalink) Old 04-17-2017, 11:37 AM
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There would have to be a lot of research including engine/transmission mount locations and drivehaft length. If someone was going to drop a completely different engine set-up in a 2015-2016 twin, heck with a V-6 if it is going to require mods. Has anybody dropped a v-8 in one of these?
V8, yes.

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post #6 of 17 (permalink) Old 04-17-2017, 11:55 AM
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Originally Posted by Randall Conway View Post
Purely hypothetical here. Obviously I'm not going to specifically go out of my way to do this swap. But, if say, the old LFX and 6 speed were to go out at some point, do you all think it would be feasible to swap them for the 8l50e and LGZ? I'd imagine that there would need to be some work done to the ECM/TCM. Not sure whether it would only require a reflash or a complete replacement of them. Thoughts?
Seems like the biggest hurdle would be getting all the electronics to play nice together. IMO if someone was considering a project with so many unknowns, may as well make it worthwhile and swap in something you couldn't just walk into a dealer and buy (e.g. a V8 ).
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post #7 of 17 (permalink) Old 04-17-2017, 12:06 PM
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If it was going to be a V6 to V6 swap, I'd personally go for the LGX/8L45e out of a Camaro, for the extra ponies and driving modes.
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post #8 of 17 (permalink) Old 04-17-2017, 02:01 PM
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I'm sure it could be done. For a price.
The most sensible post here.
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post #9 of 17 (permalink) Old 04-17-2017, 03:03 PM
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If you were to do it today the cost would be more than you want to pay and you would kill about any warranty you can think of here.

Now take the truck and trade up for a new one you would take a small hit and keep warranty and all future trade value.

Physically it could be done but the cost of it is just way out of line with reality to what you would give up.


Now ten years from now you can pick these engines up cheap but even then it would cost more than the truck would be worth.


Either be happy with what you have or trade if you need the new engine that bad.


The only engine swap here that would make sense is the Camaro swap or a V8 if you don't mind killing the warranty. At least these are enough to draw added value to someone if you should ever sell it later.
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post #10 of 17 (permalink) Old 04-17-2017, 03:18 PM Thread Starter
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If you were to do it today the cost would be more than you want to pay and you would kill about any warranty you can think of here.

Now take the truck and trade up for a new one you would take a small hit and keep warranty and all future trade value.

Physically it could be done but the cost of it is just way out of line with reality to what you would give up.


Now ten years from now you can pick these engines up cheap but even then it would cost more than the truck would be worth.


Either be happy with what you have or trade if you need the new engine that bad.


The only engine swap here that would make sense is the Camaro swap or a V8 if you don't mind killing the warranty. At least these are enough to draw added value to someone if you should ever sell it later.
Reread the first 3 sentences of my post.

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post #11 of 17 (permalink) Old 04-17-2017, 03:35 PM
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Reread the first 3 sentences of my post.
The reality is Cost would hypothetically render a swap like this moot. Then you have the rest of the issues.

As for the computer most times they can be reflashed as they use the same unit most times but not all. Generally if you are getting a new package you take the computer with it. That is what most engine swap guys do as they take the harness and all. Or they buy a aftermarket harness if offered like for most LS engine. I do not see a harness being offered here since few will be swapped compared to the LS.


My post was just saying it was not feasible or wise at this point.
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post #12 of 17 (permalink) Old 04-17-2017, 04:30 PM
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You can, but you're also throwing away the engine in this plan, and even though its the same displacement with basically the same HP, the new engine seems to have a lot more power under the curve, just going by feel (and trying to ignore the differences in transmission and ECU calibration.)

I guess what I'm saying is, why not just replace BOTH (or just trade in and buy.)

I get the theory but reality and theory don't play out the same too often. Certainly not in my field of experience.

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post #13 of 17 (permalink) Old 04-18-2017, 08:46 PM
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i would just do a 5.3 with the A8 behind it
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post #14 of 17 (permalink) Old 04-18-2017, 10:49 PM
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Screw that, twin turbo v6 LF4 from the ATS-V. If you're going to spend all the time swapping engines and trans for basically the same engine, make it worth it!

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post #15 of 17 (permalink) Old 04-19-2017, 02:47 AM
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Quote:
Originally Posted by Randall Conway View Post
Purely hypothetical here. Obviously I'm not going to specifically go out of my way to do this swap. But, if say, the old LFX and 6 speed were to go out at some point, do you all think it would be feasible to swap them for the 8l50e and LGZ? I'd imagine that there would need to be some work done to the ECM/TCM. Not sure whether it would only require a reflash or a complete replacement of them. Thoughts?
In the future when the wiring harnesses, ECM, BCM, engine, transmission are available at a junkyard maybe. But who knows if the rest is compatible? Like the DIC. Want to change out all the dash stuff too? I think the idea is silly...thats my thoughts..... unless you have an unlimited amount of money then go for it....lol
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post #16 of 17 (permalink) Old 04-21-2017, 04:52 PM
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Screw that, twin turbo v6 LF4 from the ATS-V. If you're going to spend all the time swapping engines and trans for basically the same engine, make it worth it!
Agreed. If you're gonna swap it, might as well double your horsepower.
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post #17 of 17 (permalink) Old 04-22-2017, 09:48 PM
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Agreed. If you're gonna swap it, might as well double your horsepower.
Or just get a supercharger, way cheaper and easier. Way more power too. Right?!?

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