if you're looking for plug and play, get a 24x wheel from eficonnection and run a '411 with a segment swap. just because you can get the 4L80E to work with the LT1 pcm doesn't mean it's "right". at the end of the day it's still 4L60E logic ....

 

torqhead is an 0411 pcm, thats what we’re talking about

 

One does not merely “throw in” a 4L80E into one of these cars. I had a similar deal available to me
and I ended up just putting a bunch of upgrades into my 4L60E for about the same cost.

 

One does not merely “throw in” a 4L80E into one of these cars. I had a similar deal available to me
and I ended up just putting a bunch of upgrades into my 4L60E for about the same cost.

End goal is a gen vi bbc being run off of an 0411 pcm

 

You said your Impala is a '95 - it's pretty easy to tune the '94-95s. Is there a reason you NEED the torqhead conversion, like forced induction, nitrous, or spinning the engine higher than 7100 rpm? Otherwise you can buy and fix a lot of optisparks, or buy a Delteq or LTCC for less money.

 

Its a 96

 

Possibly a good read for you

Stickied: 4l80E Swap Questions: wiring, etc.

to make a swap4l80e into the 96 caprice /my motor is ready and ill like to use a 4l80e tranny i hear they are strong trannys. what do i need to make this swap happen?

www.impalassforum.com

Question though , if the end goal is a late fat block , why not do it all at once ?

 

I have the 4l80e sitting in the garage, and I do not trust a 4l60e as far as I can throw it. I have owned several cars with them over the years, and they always break (typically at inopportune times).

 

Welcome back to the forums, Jack.

You could at least change up the way you post so it isn't so obvious.

 

Here is a link to a previous build I did with a Vortech L29 7.4 4l80E into an 84 Monte Carlo.

L29 454 swap

hey all, my name is Blake, and I have a 1984 Monte Carlo ss with a targetmaster 2pc rms 350 that was installed in 1986 under warranty, and the original th350c. At some point in time somebody installed a 3.73 motive gear into the open carrier (and didn’t change the speedo gear), but with the...

gbodyforum.com

it retained all of the factory multiport efi stuff, and is now running off of an 0411 pcm

 

why would you need a conversion harness? just repin the 4L60E connector.... you'll have to add a twisted pair for the ISS. man this stuff has been around for 20+ years have you googled this at all??? https://lt1swap.com/4l60e_4l80e_harness.htm

 

Hey man, thanks for the reply, and at the risk of sounding “pissy,” did you read my post at all???

i am well aware that it can be repinned, both for the gen3 pcm, and to run off of the existing ltx computer. In fact, I mentioned in my post that I had read these.

i am interested in a plug and play solution. Also, Torqhead is a bit of a unique bird, as it uses a proprietary case for the 0411 pcm, which to my understanding contained some repinning in order to make it a plug and play solution.

my question is to those folks, who have done the torqhead upgrade, and have also installed a 4l80e. I know they exist because I have seen their signatures and they list torqhead and 4l80e in their sigs.

 

here's an idea, maybe contact torqhead for support since obviously you're not getting the answer you want to hear from us. maybe they have some kind of "conversion harness" for lazy people that cant use google and/or read a wiring diagram.

 

spend $100 or unpin 2 wires and move 1 wire: THIS IS INSANITY

 

Man you guys are aggressive.

 

Because we know who you are.

 

@Sinister I don't think he is who you think he is.

@Uninsurable your very first post you state Impala, which in your intro thread you said was a 95. Then you talk about 96s and then switch to talking about the Caprice you're buying. So it's confusing. And @tayto is right - repinning a 13 pin harness is EASY. We're having a hard time understanding how you're OK with a pretty involved mechanical swap and are simultaneously afraid of a very simple re-pin.

 

@Sinister I don't think he is who you think he is.

@Uninsurable your very first post you state Impala, which in your intro thread you said was a 95. Then you talk about 96s and then switch to talking about the Caprice you're buying. So it's confusing. And @tayto is right - repinning a 13 pin harness is EASY. We're
having a hard time understanding how you're OK with a pretty involved mechanical swap and are simultaneously afraid of a very simple re-pin.

I see the confusion. My post actually was describing the three previous B-bodies I owned, and explained that I was purchasing a 96 Caprice. Which, I am proud to report I did. I drove it back home to Florida from Connecticut in a pretty epic road trip. I

i’m not scared to re-pin the connector. I am just a bolt up solution enthusiast. I like to do writeups to show newcomers how to do complicated projects with very little skills.

i did have a bad repin experience on my marauder, Irepinned the maf so I could run a lightning 90mm maf and it had a loose wire into perpetuity.

for me it comes down to a time component. Without getting to personal, I own my own business which results in me working 50-55 hours, I am also a single dad (fortunately with alot of help from my mom) and so I am at a point in time in my life where if I can save myself an hour by paying $100, thats a no brainer to me.

 

Not many folks with 4L80-E along with Torqhead.
Why not ask those you claim have this combo in their signature?

 

yes the first post is a hard read. i had to reread it a handful of times to grasp if the post was a statement or question. you're asking for free advice. we are not paid or obligated yet take the time to read and post and then you tell us we haven't properly read or answered your question? the truth is, it has been answered correctly a bunch of times you just don't like the answer. with that being said if you are buying torquehead i would look to them for tech advice especially for the cost of their product. i would say this forum is more orientated to keeping the stock setup (optispark & 4L60E), as they work just fine for 99% of applications. while the 4l80e is a good transmission i don't think it's needed until you get up to the 700hp range, which is not the norm around here.

 

Thank you for your input.

 

13 month update. As I suspected, my stock L99 4L60E is now behaving strangely on 1/2 and 2/3 upshifts, and hunts between first and second when downshifting. Behind a stock L99. 4L85E inbound!