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I've been looking at the idea of putting one in my 91 Z28.I'm sure mounting it won't be hard but i'll need an adapter plate or something to connect it to the motor.Does anyone know if there is already one made?I've seen a couple trans with less than 50 miles on them for about $1200.just doing some research.Thanks to all who reads this!!!
Unless they’ve changed something with the very most current stuff, the caddy bellhousing pattern is the same as the chevy 60*V6 pattern, so you’d just need an adaptor plate for that. Probably the easiest place to look is at the fiero V8 swap stuff.
I'm going to get one from a v8 caddie not six.Never mind i know what you mean.Someone makes a kit for the 4L80 I'll contact them and see if they have anything.Thanks for a info on the fiero adaptor plate.
I bought up the 4L80 because the company there is a company the makes the kits to run them may be ale to get a kit for the caddie 5 & 6 speed trans.So how could i mount this to a chevy V8?
Mount what to what? I’ve already answered all this I think. A 4L80 bolts to an SBC. The caddie trannies use a 60* V6 bellhousing pattern so just use an adaptor plate, V8 Archie, and for that matter most of the fiero world has these available going both ways.
you want to spend a fortune to make this work don't you? the propriatary contorlers for the 4l80e are 1000-2500 alone, that tranny may be similar but it requires a different program and they are not a popular swap so unless you plan on programming your own, you will be spending much more than 2500.
That said, I did run across a company with a controler that claimed to be able to control any (E) transmition. but I don't recall seeing caddy's in the list(Ill keep an eye out for it and link to it if I find this company again). this is still expensive, you will be better off finding the right GM computer to control a 4l80e (see www.moates.net)and if you want to spend 2500 more and have more than 4 gears, buy a GV and make it 8 speed.
Thanks 82,Co2 it's a future mod I read in a mag that GM will be making them available,just can't remember if it was a kit or not.I'm not trying to be the first one with it by the time I do it there should be a kit or something.
You could always use a 6-speed Allison from the late '70s. They don't require a controller. You'll probably have to open the tunnel to make space, but you'd have your 6-speed.
GM is doing away with the 4 spd auto's. Eventually every auto will be a 5 or 6 spd. I forget where i read it but they are starting with the upper end cars (cadi's etc.) and they will work their way down to the lower chevy's and such. Give it a while and you'll be able to buy everything right off the shelf and bolt it right in.
you want to spend a fortune to make this work don't you? the propriatary contorlers for the 4l80e are 1000-2500 alone, that tranny may be similar but it requires a different program and they are not a popular swap so unless you plan on programming your own, you will be spending much more than 2500.
That said, I did run across a company with a controler that claimed to be able to control any (E) transmition. but I don't recall seeing caddy's in the list(Ill keep an eye out for it and link to it if I find this company again). this is still expensive, you will be better off finding the right GM computer to control a 4l80e (see www.moates.net)and if you want to spend 2500 more and have more than 4 gears, buy a GV and make it 8 speed.
1- the 4L80 is just a 400 with an OD added to it. If you wanted to, technically you can do gear splitting just like you can do with a GV unit bolted behind a 400. the OD ratio is even very similar, .75vs.78. Here, this is the front pump assembly with the OD unit sitting on top of it:
and this is the case with the normal 400 gearset (plus 4th gear shell) sitting in it:
2- If you wanted to “roll your own” you can grab a PCM from a ’92 and up 2500 or 3500 truck or van and then just piggy back it to the stock PCM, just connecting the inputs and the transmission connections to it and it will control the transmission, for whatever you can get the PCM for at the JY (locally, it’s $15).
3- If you want to go aftermarket, stand alone, then you can get the TCI TCU (GMPP also sells the same deal with it’s own sticker), they run $650-700. I have no idea where the hell you’re that you’d have to spend thousands of dollars for a stand alone setup. TCI is releasing new versions as they come out on the market, as of right now I know that they have 4L80, 4L60, 4L65 and assorted ford and dodge versions out.
4- You can skip the whole deal if you want and just use a manual valve body in the 4L80e, completely eliminating all the electronic controls in it.
The escalade is just a chevy/gmc truck with caddie trim on it. It uses a plain old chevy drivetrain.
The 4L80e is a chevy transmission, it bolts to a chevy V8 without any modifications.
Any Cadillac specific stuff (the northsar, the earlier 4.x L caddy engines… and matching transmissions) just use a chevy 60* V6 bellhousing pattern, using those with other chevy V8 driveline parts just involves using a common adaptor plate
The 6L50 is designed with the same modular flexibility as the larger 6L80 and is fully compatible by using the same advanced electronic controls. As with the 6L80, the 6L50's gearset configuration enables the same 6.04 wide overall ratio.
As with other GM six-speeds, the 6L50 delivers smaller steps between gears, enabling the vehicle to quickly find the best gear. A higher numerical first gear delivers strong acceleration from a standstill and two overdrive gears enable improved fuel economy through lower engine rpms at cruising speed. Also, the lower rpm achieved with the sixth gear reduces engine noise and vibration on the highway
The 6L50 also uses the Driver Shift Control feature, which allows the driver to shift the transmission like a clutchless manual gearbox. Also, the transmission is calibrated to override the automatic gear selection during closed-throttle and high-lateral acceleration maneuvers, rapidly downshifting with nearly synchronous engine speed matching for quick power-up when the throttle is reopened. This gives the feel of a manual transmission during deceleration. Electronic safeguards prevent over-revving.
6L80 RWD six-speed
The Hydra-Matic 6L80 six-speed automatic transmission was the first of four variants in the rear-wheel drive transmission family designed with modular flexibility and compatibility with advanced electronic controls. It also features clutch-to-clutch operation, manual range selection and an integrated 32-bit electro-hydraulic controller.
The 6L80 also is tailored for the heavy-duty requirements of SUVs and trucks, and is offered on GM's 2007 full-size SUVs equipped with the Vortec 6.2L V-8, such as the GMC Yukon Denali and Cadillac Escalade. In all applications, the 6L80 has a wide, 6.04:1 overall ratio - including two overdrive gears - that helps deliver up to 7 percent improved 0 - 60 mph performance and up to 4 percent improved fuel economy.
The 6L80's six forward gears have smaller "steps" between them, which bolsters both performance and the feeling of smoothness. The smaller steps also enable a steep, 4.02:1 first gear, which provides an improved-performance launch feel. And with two overdrive gears, engine rpm is reduced by approximately 9 percent at 60 mph - a reduction of about 1,350 rpm.
A 32-bit electro-hydraulic control module optimizes transmission performance according to a variety of vehicle inputs, while also enabling features including tow/haul mode, auto grade braking and manual range selection. The controller is integrated within the transmission.
you want to spend a fortune to make this work don't you? the propriatary contorlers for the 4l80e are 1000-2500 alone, that tranny may be similar but it requires a different program and they are not a popular swap so unless you plan on programming your own, you will be spending much more than 2500.
If you can locate a 93-95 TBI PCM, those can be used to control at least some of the 4L60-E and 4L80-Es. They typically go for around $50-$100, and there is full documentation on the E-trans code. To program it, you need to use a moates adapter, cable, tunerpro and prom burner. Oldred and others on this board are using this very same computer to run the 4L80-Es. Seems to work well. They are also similar to the $8D TPI ECMs on the fueling side, and are easily converted to MPFI, so you can simply use the PCM to control the engine and transmission.
