LS4 Tech: 4T80E Swap In Depth - What You Need To Know - PT2

[@SummitRacing]

Great video! Thank you.

[@LS4King]

I'm glad you liked it!

[@backyardgarage]

I built my own 4T65E. Zzp input and output shafts, reinforced baskets, kevlar clutches, TH125 chain and sprockets. Drilled spacer plate, transgo shift kit, sonnax boost valve, 12x12x1 plate and fin cooler. Got about 10k on it now putting down 380 wheel daily driven

[@romelcarmichael2660]

Yo where did you find the TH125 chain and sprocket at

[@MistahMan_420]

How much to rebuild my transmission like that?

[@joshschattenkirk]

Thank you for taking the time to put together this video. Everything is so well laid out, very good visual aids, and you sum up hours and hours of r&d i one 17 minute video. Very helpful to the community.

[@LS4King]

Josh Schattenkirk no problem and I am really happy you found it useful.

[@WBodyTech]

This video will be very helpful for so many people looking to upgrade to a stronger transmission.

[@LS4King]

I certainly hope so!

[@jayboogie401]

I use both you guys for my knowledge

[@Turbocharged400sbc]

Glad ya'll are finally recognizing the 4t80e as the most robust option. Nice and thorough with the tidbits. Much better with many of the "soft shift" valves deleted internally....they really went to 11 with the NVH compromises/features for the finicky Caddy buyers. Someday we'll look at two ls4s for the 442

[@brandonrohrer7914]

I'm loving it. Makes me wanna put an ls4 in my caddy

[@patrickshaw8595]

I FOUND THE PERFECT REPLACEMENT FOR MY TURBOED AND BLOWN CORVAIR STREET BUGGY

[@michaelcouey1383]

These videos are really not helping me forget my long time desire to build an LS swapped fiero...

[@trintenm8551]

My LS4/4T80E Fiero should be on the road soon! You can find my build thread over on PFF

[@maxpower001]

We just installed it on Eric's 07 SS.. SUPER TIGHT FIT, VERY HEAVY TRANS, but we got it no sweat, and we used your solid subframe mounts

[@LS4King]

Yea, that 4T80 is a monster! Glad you guys knocked it out!

[@maxpower001]

@@LS4King we had the subframe on the ground on "rollers" set the engine and trans down onto the subframe (after some light shaving for clearance) lowered the car down then caught 4 bolts... Nice n smooth👍

[@dreadmant750]

he really is the ls4 king, ive never gained so much info about this fucking engine and tranny ever.

[@jimfryar1]

New to the LS4 game… I’ve got a very special and unique project I’m gonna use mine for, so I appreciate your videos!!

[@ericwilkes238]

This man's knowledge is amazing

[@LS4King]

Thank you!

[@DjSmoothNY]

That looks super clean and ready for some great performances. I have the 5.3 with an aftermarket remanned 4t65e hd that I ended up going with after my previous 2 transmissions were shredded to pieces. Still holding onto the road with an 06 Impala SS for 18yrs now 🤞🏾🤞🏾

[@noahstiles4844]

Such an in depth video, Thanks Brandon!

[@timeless6964]

A Wealth of Information!!!.....You Should Publish Your Own Workshop Manuel!!!.......Great Idea!!!.........Good Luck!!

[@aarongobert9739]

Can't wait to do this to the monte carlo ss my dad left to me when he died I've been talking about doing this for years thanks for the vids of all I need truly helpful

[@yeathatsright1034]

What year

[@blckopssnipingmdsgms]

Dude you saved my pondering thoughts😂 I have been hearing I can swap my 4t 65ehd with a 4t80 but been so lost on how but you helped

[@jeffroking4832]

nice stuff,,,if i ever go this route he seems to be the go to guy for all my help

[@ytwhite5930]

While I don't see using any of this in my future, I watched anyway and found your video informative and very thorough...Thanks!

[@davidwoodyjr4780]

Excellent video one of the best I've seen thank's

[@BLAKizLurKin]

Very nice design of mounts! Dam when you said get rid of the dog bones I start smiling. Lol, I have a 3800v6 s/c. Unless I swap motors.

[@LiuMoon13]

This is awesome, planning on swapping into a X-Body. You can beef up the 4T-65E HD to handle the power ZZP does this and many others. My issue would be the plumbing but the front cover solves that issue. I'm going more a simple small block 383 N/A but this is all paper planning. Anyways great content and can't wait to see the finished product.

[@w41duvernay]

HOw can you strenghten the 4t65e?

[@LiuMoon13]

@@w41duvernay check out zzp's website but you can run a hardened input and output shafts, oil pump shaft, 1-2 clutches and gmr 1 inch chain replacing the double chains which is it's weak point.

[@CDC-Vprototype]

This is very good to know once my Northstar blows up I’m going LS4 in my caddy but for now I build up my Northstar but I’ll have a LS4 at the ready

[@trizkial7592]

@LF X Yea once studded those things are bulletproof lol

[@chevycaprice8956]

Nice caprice in the background

[@hurcovmx426]

Awesome video.I watched your first transmission video. And you talked about the starter mounting location...

[@LS4King]

Hurco VMX42 Thank you I am going to be doing a separate video that just discusses the starter as the main topic

[@hurcovmx426]

@@LS4King awesome, And I really like that provision prototype you made with the plastic printer.. I live in Michigan I wish you were closer I'm a journeyman 3D tool & die maker.for over 30 years. We definitely could make some stuff. Again Super job on the videos.

[@LS4King]

@@hurcovmx426 That sounds like a cool gig! Thanks for the support!

[@joshlogan2961]

thanks for the great video

[@Junkyard_Dave]

What is the cost for the Pan, mounts, etc?

[@LS4King]

Please email me for pricing and availability [e-mail]

[@bradysolaem2467]

Very informative I told my boss im omw before this vid started haven't moved.. Splitting this off a North Star Seville 04

[@vaccumme]

Wow. Very nice.

[@LS4King]

Thank you!

[@davebarron5939]

Very well done, highly informative.

[@armcchargues8623]

Hmmm...LS4 and a 4T80 in the bed of my S10. Here goes my savings account.

[@claytoncarter]

Dune buggy, here I come!! Hell yeah, brothereeeerrreeeerrrrrrr!!!

[@fixitdad1955]

》▪︎One way that could make the tasks of the swap easier for you is to create a program for both the LS4 & 4T80E and have a CNC Mill automatically trim away all of the unnecessary fat from each piece. Might take some time but would be more efficient and helpful to others. doubt is with this GM 4T80E Transmission Swap. The Chevrolet LS4 V8 is, instead4T65E ( That couldn't even handle the HP & Torque from a 3.8l V6 The Owner & Host of this Awesome KZbin Channel, 》 use with a CNC Mill

[@brayannexon4613]

Well, this means I can confidently LS swap my Cadi Deville! 🤣🤣

[@justinbowles4671]

Have you done yr Ls swap yet? I want to do the same.

[@johnhenry3820]

Same here on 06 impala lt

[@kevinanderson5374]

I'm wanting to do the 80e swap on my l67 so bad I'm tired of going through transmissions. Hope you can come out with a swap video for them in the future

[@LS4King]

We may have something in the pipeline with GM EFI Magazine!

[@kevinanderson5374]

That would be lovely I'll be lookin forward to it. 😁

[@Nathan1LE]

Youre making it hard for me to keep my Impala stockish😂 I need her as the daily but I want to build it now more than ever!! I remember you talking about starter location in the last tranny swap video, what ended up being the solution?

[@LS4King]

The solution is to still relocate to the oil pan. I will be doing a new video next week highlighting the pas I have dropping in 2020

[@timothychaplin9767]

Let’s talk about LS4 swapping the Seville/deville chassis that the 4t80e trans originally come in

[@timothychaplin9767]

Fwd Northstars don’t have a huge performance aftermarket like rhe LS platform does, there are people who would be interested besides myself in this swap

[@TheProchargedmopar]

You guys building these for rear/mid engine drive vehicles? I have an extra 71 Ply Satellite/Roadrunner I'd like to convert to mid engine. Make a street car wheelie machine. 😆

[@LS4King]

I am actually in the middle of swapping my best friends Fiero!

[@TheProchargedmopar]

LS4 King That's gonna be insane!!!!!

[@tman8023]

@@LS4King serious business would you do this for me and if so how I get in contact?

[@bradysolaem2467]

Facts! Never tighten any bolts untill every bolt is threaded I can't count how many times ive made that stupid mistake how many hours accumaltive total wasted over 12byear or so

[@jonathanryan2915]

I've owned 2 white Caprices just like that one in the background

[@Foxstang4life]

Hats off to you sir nice discovery!! And I thought swapping a Tremec T56 into my 09 LS4 impala was a bitch , cracking up, I wish . . Anyhow that trans does look pretty dam stout

[@LS4King]

Thanks!

[@ace1usmc]

Howdy Brandon! I just sent you an email regarding an LS swap into a Northstar Cadillac.

[@conncorey1066]

Great and subbed!

[@LS4King]

Thanks!

[@mikehall737]

I got a 06 Buick Lucerne CXS with a Northstar I was swap a modded ls4 in it .

[@ICrane88]

How much would you charge to do this build if engine and trans are provided?

[@MrGooglize]

Niiiiiiiiiice work Does the 4t80e swap allow you to keep the paddle shifter functionality?

[@noahstiles4844]

Unfortunately not, but it's a worthy sacrifice.

[@Randy1290]

What kind of axles do you use?

[@thewrencherz28racer92]

I bet you get a lot of questions regarding a swap from the 4T65e to a 4T80 with a V6. I only ask because I have a friend that wants to build up his SC'd 3800 Bonneville.

[@v3zMedia]

Are certain ratios better than the others? I just found a 3.11 at a junkyard for $200 with 123k miles on it. From a 2000 Deville.

[@that_neon_channel2438]

What about trying to bolt it up to an L67 in a W body impala..? I'm not happy with my 4T65E, and for some reason, the 4T80E is cheaper than a reman 4T65E-HD. Any help or parts list would be MUCH appreciated. As well as trying to tune it to the OEM computer.

[@jeffroking4832]

on your lower bellhousing ear that gets cut off,, have you ever considered Tig welding up a different style boss and drilling then tapping a new higher mounting hole,, even if the hole is a little sketchy you can alway install a helicoil and with any luck have that lower hole mountable.. I see your 3D printed adaptor you made and I get the function of it but I just wonder if welding and making a new mounting hole would work

[@LS4King]

It's certainly not a bad idea...but it is most likely far beyond the average enthusiasts skill level. The clamp is a solution that the average guy can just bolt on for some added insurance.

[@jeffroking4832]

@@LS4King absolutly,, and I highly believe the clamp will more than help in all situations,,I guess I am lucky that on a daily basis I do my share of AC Tig welding and have no fear of aluminum material,,, hence my job fixing tire molds.. and you are correct,,, slamming the pedal and laying a row of aluminum is not up to everyones skill unlike pulling the trigger of the mig welder,,, and even at that I have done alot of AC mig welding in my work career,, I wish we were closer I think our combined skill of fabrication and welding we could rewrite the LS4 world in its potential

[@jeffroking4832]

@@LS4King I also forgot to ask,,, and I believe i am talking to the correct guy,,, I follow your buisness facebook page and I seen where you posted you was in a nasty wreck,,, you doing ok now

[@LS4King]

jeff king yea thats me haha. Im doing okay thank you for asking. It’s a long slow process

[@ICrane88]

How much would you charge to do this if I were to provide the engine, trans, and frame I have a LT 3.5 I want to swap

[@freedumbsquirts4809]

I'm thinking a mid engine GM version of the Ford Shogun. Maybe a Metro...

[@LS4King]

Shit Shower that would be insane!

[@Scorpion_milk]

Imagine a Ford probe GT with a LS4 swap just imagine

[@civicsr2cool]

Why the rebrand?

[@LS4King]

CivicsR2Cool shifting focus specifically to the LS4 platform and getting out of the labor side of things due to my accident

[@ronwhittaker6317]

your answering a question I've had for a while, like can a transverse transaxle take big power back in the day I knew the answer but do the modern ones fare better?

[@JonOffgrid]

cool

[@blckopssnipingmdsgms]

Waaaait a damn minute are those 317 heads ported and welded? Is there anyway you can give a bit more info on that lil trick?

[@ericchris5778]

Concerning the torque converter... How much space should be between flex plate and convertor pads to allow for converter swell and proper pump flex on input shaft?

[@MORCSPEEDSHOP]

OK my question is. Why do this swap? Also do you think this would be the best route for a Fiero? No forced induction maybe mild Cam and bolt-ons.

[@LS4King]

aaron parfitt the 4t65e that the LS4 originally came with has been proven time and time again to be problematic at moderate power levels. The 4t80e is a much stronger transaxle. In a Fiero which is significantly lighter than a w-body I feel you would be much more successful at keeping a 4T65e alive and this swap probably isn’t for you.

[@MORCSPEEDSHOP]

Awsome thanks for the info. Still what is the reason for the swap? Is the 4T80E that much stonger. Like a 4L60 to a 4L80.

[@LS4King]

aaron parfitt yes, the 4t80e is much stronger

[@armandopalmieri5437]

What final drive are you running in your monte? I'm looking to put a similar setup in a fiero.. wanted to see if you could help with a recommendation. Figured I would come to the king.

[@LS4King]

mondo mondo i am running the 3.11 with a 26” tire. It depends on your needs. 3.48 might be nice if it’s lighter snd less power.

[@tec9tjguntek]

Are all the shift control logics of the 4l80e (line pressure, pwm for lockup frequency, ect.) the same as the 4t80e? I have a standalone controller for the 4l80e so that should work for the 1999 and down 4t80e right

[@LS4King]

That's all correct

[@mikelmarion]

Serious question….do you think this engine would bolt up to any Fwd/Awd import transmissions? Like let’s say a DSM Mitsubishi Eclipse Auto Awd trans? And also any 6/8 speed gm Awd trans?

[@kevinhumphrey932]

I have a 2005 GXP with a 5.3 what year of transmission should I look for 93-99 or 00-up and is it possible to make the tap shift work when using the 4t80 one last question do you sell your conversion brackets braces etc to do the conversion thank you

[@LS4King]

Hey Kevin, please email your questions to [e-mail] and yes i sell all the parts

[@robertgray6310]

I have a 2006 and was told that the only trans that would work is a 2006

[@MrRagequitnow]

I want to shove this combo into a U-body (04 Aztek). Besides the obvious question of why someone would juice up an Aztek, I am a road Troll. I don't rage on people, I just like F>

[@toddhargett2135]

any update on that converter you were working on getting made? also just a thought could they make it work with the ls4 flex plate? or make a 4 bolt flex plate to mount to the ls4?

[@trintenm8551]

Precision did a hybrid converter for me. It has the "guts" of a 4T80E, in the shell with a billet cover of a 4T65E. They were really cool about working with me on it. Charged me 1k at the time (about 2 years ago?) SO it bolted up to my stock LS4 flexplate. To Brandon's point, trying to get a billet one made is tougher. I talked with Meziere, they do have a drawing for one, but you'll notice from the edge to center the LS4 flexplate has two "steps". The one they made only has one. They had me take a boatload of measurements to make sure theirs would work, but after all was said and done, they were only about 90% sure there wouldn't be any interference issues. So sticking with the stock one for now.

[@glenningram9962]

Excellent job !! Would love to install into a late model Ferro … with custom mounts and axles. Would be inline of being a Supercar at 1000HP!! Can the auto Tranny be set up for paddle shifters? Is there any close ration gear sets that can be used for racing and or off road options ?? What max power can it handle ??? If I ProCharger or supercharge it it could go north of 1,000 HP …. Advise Keep them coming !!!

[@LS4King]

Hey Glenn! Thanks for the kind words! PCS does offer a trans controller with the option to integrate paddles which would work excellent. Unfortunately at this time, there are no aftermarket gear sets. As for power handling capacity; I have personally put over 800whp and 700ft-lbs through a stock unit with unknown mileage problem free. I think a carefully prepared rebuild would easily support 1k ft-lbs with the normal tricks.

[@glenningram9962]

@@LS4King awesome. Very interesting idea. Thank you ..... for sure will put you on my Dial List when I start the project. BTW - love the 3D printed spacer block. Excellent innovative and as an aerospace engineer I love seeing this in Gearhead threads!! Best of luck

[@LS4King]

@@glenningram9962 thank you sir

[@Jayriskit]

How much would you charge me for a ls4 engine with a 4t80 ready to install in a 07 monte carlo ss?

[@jayboogie401]

I wanna do this to my 99 z34

[@LS4King]

Jay Boogie get busy!

[@AMidwesternLife]

Hey man you on the ls4 page on Facebook?

[@LS4King]

Tone Ledesma i am on a few of them, yes!

[@randomfootballcars9547]

What page is that? I have an 08 GXP I'm trying to turbo and upgrade engine and trans

[@THE_CHOAS_ENGINE]

what is the realistic list of advantageous doing this over a built 4T65? Any disadvantages?

[@LS4King]

Rick Dangerous it really comes down to your goals. Under 400whp you could throw money at a 4t65 and have it probably stay together. Anything over that and you are playing with fire in my opinion. That is where the 4t80 comes in. The downside to the 4t80 is just how labor intensive the swap is.

[@sofadviolator]

If my allante Northstar dumps, Id like to swap to Ls.

[@LS4King]

Definitely a good idea imo

[@sofadviolator]

@@LS4King So far, big Al's N* is running strong - maybe the fact mine was the wifes car of the owner of the caddy dealership where I live back to the mid 2000s, they did lots of work to keep it pristine and maintained.

[@dat614boy]

If all eternal parts are the same as a regular impala SS or Grand Prix GXP transmission can I use them parts from the Cadillac transmission to rebuild my original one in my impala ?

[@ronaldparungao487]

So I bought an ls4 not knowing what I was looking at and I my idea was to put it in my Jeep . I do know that the bolt pattern on the ls4 matches the bolt pattern on a 60 degree 700r4 would you know if I could make that work as far as fly wheel, your oil pan starter provision or another type of starter set up . And lastly I’m sure I could get the motor mount situation fabricated. Could you let me know if it seams possible to do I can’t find anything on any forums about ppl finiothis type of project

[@williammercer6905]

Do you do these modifications in your shop, and if so, where are you located?

[@robertgray6310]

I was told only transmission that would work in mines is a 2006 as trans

[@shawndupuis9546]

Is this trans strong enough to run in serious tow application thinking about old 70s Eldorado subframe and suspension to make a fwd coe or van front cab with a trailer style dual axle flatbed car transporter seen one used a lumina front with the cut behind doors to haul a speed boat

[@iansaghy9247]

What it takes to swap ls4 into 95 eldorado if have whole donor car with ls4. Is Impala LS tcm will connect to 4l80 external neutral safety switch or I need get whole another late model 4t80 with internal switch? What it take to make 4t80 functional with ls4 ecm tcm

[@jjizzy350]

Hey I'm trying to swap a LS4 in my 1999 Cadillac STS. Will those mounts work for my subframe

[@LS4King]

Unfortunately they will not

[@briansnyder8898]

Thanks for the video. Got a ? Will an ls4 work with a versatrac awd drive train?

[@LS4King]

With my oil pan conversion I don’t see why not!

[@nathandunn7383]

Ls4king my 4t65e GXP trans just got rebuilt with a high stall torque converter and shift kit what Brian Tooley cam or any other camshaft can I use?

[@JoseGonzalez-pm6nk]

Question is, where do you mount the starter? I don't see the starter on the video

[@geoffreystearns1690]

Hm..I wonder if that 4T89 could be mated to a 4.3 vortec v6??????

[@Gooseo2000]

Why the 4t80? Is it tougher than the stock trans that comes with the ls4?

[@LS4King]

Yes. 250% stronger.

[@marshallmcfarland7555]

I would like to put an LS four into a 2002 Eldorado get rid of the Northstar is that possible

[@jayboogie401]

Starter mounting locations...

[@LS4King]

Jay Boogie i covered that in the 1st video, but I will be doing a follow up with my new oil pans after the 1st.

[@jayboogie401]

Can I see it finished state!!!! I wanna get all the major fitting issues understood so once started I can gone an try an get like you. My everything is totally different so I guess I'll have to use you as a guide then go at mine!!!

[@LEGOCAMARO]

Do you know if a f35 transmission (5 speed manual cobals ss trans) will mate up with a ls4?

[@ajhillenbrand7817]

So the LS4 transmission flex plate/drive plate is already a 3 bolt pattern. If it's factory set up like that, would an LS4 engine bolt into a 2010 Impala to the transmission like it was made for it???

[@ajhillenbrand7817]

Still new to all this, so it's hard to find accurate information on specific parts.

[@meechdouble4297]

How can I get the mounting plate for this set up ?? I want to run my 2007 Gxp as a automatic but I just want to hold the v8 power

[@badassgaaming3449]

Would the ls4 bolt in to a 2000 grand prix GTP? What kind of modifications would i need if not?

[@123bigred]

I wonder if a new 454 with this transmison would fit in a 2007 monte carlo ss. That way you have a monte carlo 454 ss, like I would see when I was a kid

[@LS4King]

Interesting concept!

[@shanetseng6040]

Would this whole set up too big for a 2005 Toyota Camry engine bay?

[@byronbartie7306]

Where's the starter location

[@mujahidabdur-rahman1826]

Hi do I need the trans module and do I need to re-pin it to keep automatic do you have a video and also do I need a tune after that

[@solutionscalebgearheadz5204]

Have you ever made it successful in a 1994 Buick GS 2 door coupe ?

[@kevinhumphrey932]

What are the electrical requirements to do the swap

[@noahstiles4844]

He put out a 3rd video addressing these issues

[@chevycaprice8956]

Where can I find a cheap transmission for a 06 impala ss the ones I found are 1100 and up

You plan to rebuild yourself or want to buy and install and roll? You dont want a cheap rdy to go transmission. If you just need a good enough for core, less than 500? check LKQ or message me back here, I know of at least 3 or 4 good enough for core or rebuild in the area.

[@jasonhill4432]

How much for one of those transmissions that will fit on my 2008 Impala SS?

[@itsfeltzzz1841]

You answered sooo many questions, how much horsepower do stocks trans take? Definitely wanna swap my 08 impala

[@itsfeltzzz1841]

Annd do impala ss sub frames bolt up to where a v6 does? Really wanna swap it

[@LS4King]

@@itsfeltzzz1841 the LS4 subframe is a direct swap. The transmission even in stock form holds up phenomenal. Extremely robust.

[@TheJimmydan67]

i didnt see anything on the starter in this video...where do you put it now??