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6l80 swap

 
Old 04-26-2018, 03:07 PM
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Default 6l80 swap

Will a 99-02 fbody 411 pcm run a 6l80 trans with a segment swap like is done with the 4l80's????....or if not how to run a 6l80 in a 99-02 fbody?...
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Old 04-26-2018, 08:17 PM
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I do not believe this is possible at this time. A 6L80E is tied to the BCM, the PCM, and the internal TCM, and the gauge cluster in factory vehicles. I *believe* the aftermarket is working on stand alone controllers, but we are not quite there yet. PATC out of Louisiana supposedly has a working model at this time. But I hear it's north of $8,000 as they sell it as a package.

Your 411 PCM cannot run the transmission. Or at least at this point in time I've not heard of anyone being able to successfully run a 6L80E using a 411 PCM.

I forgot to mention that your floor pans, and transmission tunnel would need lots of cutting and welding to get that trans to fit. If it's the ultimate in strength and reliability you are looking for-look no further than the 4L80E. If you just want to be able to say you have a 6 speed-go manual.
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Old 05-01-2018, 09:38 PM
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It takes a E38 PCM and the PCM and TCM must match. Speartech has a stand along
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Old 05-02-2018, 06:20 PM
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Excellent information Jimmywaldo. I have not looked into what the aftermarket has come out with recently.
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Old 05-04-2018, 09:35 AM
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Has anyone with real experience actually done a 6l80 swap in an fbody?
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Old 05-04-2018, 10:51 AM
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There is a lot more going on in a 6L80 than the older trans. PCS sells a stand alone harness/controller for it.
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Old 05-04-2018, 11:20 AM
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This may be of interest to you.

http://www.tbmsport.com/
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Old 05-05-2018, 01:06 AM
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Originally Posted by warriorpluto View Post
Has anyone with real experience actually done a 6l80 swap in an fbody?
The cost/benefit ratio just does not exist. You would have more in the trans swap than the resulting vehicle would be worth. This means "probably" nobody has done it.
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Old 05-05-2018, 08:10 AM
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It was done in a gto. I eventually plan on doing a swap in mine. Parts get cheaper as time goes on.
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Old 05-06-2018, 11:53 PM
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Originally Posted by Kfxguy View Post
It was done in a gto. I eventually plan on doing a swap in mine. Parts get cheaper as time goes on.
Did that guy ever finish? The last I read he was deep in the planning stages, but I never read any finished results. Even if he was successful, the cost greatly outweighs the benefits. Sort of like when somebody spends $30k on a hybrid to save a few dollars a week on gas. If you want to do it just because, that is a fine personal choice. However, don't kid yourself into believing that it is a reasonable thing to do.
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Old 05-08-2018, 02:54 PM
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GenIV+ OEM components are a major pita to swap because they use a can bus twin stream data network that talks in real time across every controller/module in use. The trans wont even shift out of park unless the "go, no-go" signals fed through the can bus all say "go" from the other modules involved

Even worse, there are MANY different OS variations and very few will "talk to each other" and you cannot flash different OS into any genIV module ( that be ecm, tcm, bcm ) or they will brick up. So in order to swap any genIV parts with success you need to match up everything very carefully and even then, expect difficulties.


24x for the win. 4L80 is bomb proof when built
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Old 05-08-2018, 03:00 PM
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Originally Posted by cam View Post
GenIV+ OEM components are a major pita to swap because they use a can bus twin stream data network that talks in real time across every controller/module in use. The trans wont even shift out of park unless the "go, no-go" signals fed through the can bus all say "go" from the other modules involved

Even worse, there are MANY different OS variations and very few will "talk to each other" and you cannot flash different OS into any genIV module ( that be ecm, tcm, bcm ) or they will brick up. So in order to swap any genIV parts with success you need to match up everything very carefully and even then, expect difficulties.


24x for the win. 4L80 is bomb proof when built

after seeing what a buddy of mine is going through right now with his vette and trying to put a trans in from another car, if it doesnít have the right operating system in the trans controller attached to the valve body, itís not going to work. Then you have to get a matching tcm for $670 and then have the dealer flash it. Maybe the conversion is a tcm replacement. I donít know. But if it is then I could see it working.
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Old 05-08-2018, 03:29 PM
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TCM is built into the 6l80. Fun right?
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Old 05-08-2018, 03:31 PM
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Originally Posted by cam View Post
TCM is built into the 6l80. Fun right?
yea. Umm no.
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Old 05-08-2018, 06:39 PM
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KFx I think Cam's comment is that the TCM is INSIDE of the transmission, affixed to the valve body. That is a true, and accurate, statement.

I'm not quite sure if that was what your "Umm no." statement was referring to. Maybe I read what you posted wrong, or interpreted wrong.
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Old 05-08-2018, 07:10 PM
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Originally Posted by Kawabuggy View Post
KFx I think Cam's comment is that the TCM is INSIDE of the transmission, affixed to the valve body. That is a true, and accurate, statement.

I'm not quite sure if that was what your "Umm no." statement was referring to. Maybe I read what you posted wrong, or interpreted wrong.
you did read it wrong. Sorry. The ďyeaĒ was agreeing to the first thing said. The ďumm noĒ was saying it wasnít fun. Lol


i had to track down a tcm today for a buddy with a vette. Supposedly it comes with a dongle to hook the tech 2 to it to program it before putting it in the trans. I canít confirm this yet because I have ordered the tcm yet.
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Old 05-08-2018, 08:01 PM
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Generational lines. I used to get criticized all the time for my net short hand.

Regardless as I understand it there are two generations that can work 07-09 or is it 10? And the newer versions following respectively. So an 07 tcm can be flashed to work with an 07 ECM of gen IV vintage but not a 10 or newer, but how well this works absent of BCM I cant say, only heresay so im a loose source for any 6l80 info as of yet
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Old 05-08-2018, 08:12 PM
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Originally Posted by cam View Post
Generational lines. I used to get criticized all the time for my net short hand.

Regardless as I understand it there are two generations that can work 07-09 or is it 10? And the newer versions following respectively. So an 07 tcm can be flashed to work with an 07 ECM of gen IV vintage but not a 10 or newer, but how well this works absent of BCM I cant say, only heresay so im a loose source for any 6l80 info as of yet

let me be honest. I have no frigging idea. Lol.

All i I really know about is 4l60 transmissions, I build some badass units for some really fast cars around here. But. For myself, I am intrigued with the 6l80. I had one in my 5th gen camaro and my 2017 Silverado has one too. So the thought of transplanting one in my gto is very intriguing. It would be the perfect all around car in my opinion because I could put lower gears in it and still have the same launching power but turn a lower rpm on the interstate. I love to drive my gto but I donít love all the gas it eats. Which is why Iím taking the cam out and putting a more economical cam in it. Having a 6l80 would be the icing on the cake. Eventually itís going to become an easier and more affordable option because the aftermarket is working on it.
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Old 06-15-2019, 03:45 PM
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A bit of a long shot asking in this thread but here goes;

Working on a 6.2L 6l80 swap now and have matching 2008 ECM, TCM, and harness. The BCM we are hoping to keep is 2011 because of seat air bags in the truck we are working on. Anyone know if the 2011 BCM will work in this combo? Or do we have to downgrade to the 2008 BCM to match?
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Old 06-15-2019, 04:15 PM
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I believe you are going to have to stick with the 08 BCM. The newer BCMs are VIN specific. IIRC they can be reflashed but only once.
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