Chevy tranny adapter

I want to run a Chev 4L80 behind my BBF, what adapters are people using and do they work well.? I see alot of glides and 400s behind BBFs so there should be some good opinions out there! thanx for your help

what question do you have Bruno? Which brand of adapter are people using to adapt a chev trannny onto a BBF and do they work well?

i just bumped it for you in the "general section " to see if any one can help you out ....... i dont have a clue about your question

thanx

The biggest deal is the bolt pattern. If this GM trans has the standard chevy patten, an adapter plate will bolt the trans up. Next is a flexplate for the torque converter. You should be able to get one drilled for you. The last thing is the converter pilot. You will need the crank adapter or bushing to keep the TC centered. I build BBF-to-GM midplate adapters and could re-drill the flexplate if the holes will miss....UNLESS it needs to be SFI cert. Then you may need to call JW or somebody like that to get a new flexplate drilled to your pattern.

easy...just run a chevy motor

4l80s use the standard chev pattern. How well do the mid plates work and what issues may i run into

Are they the same bellhousing as a th400? JW makes an ultra bell for BBF to TH 350 and TH 400.

http://www.campbellenterprises.com/automatic-transmission-parts/jw-performance-transmissions/ultra-bell-bellhousing.htm

they have the same bellhousing as PG, t 350, t 400. i dont want to cut the bell housing, just looking for people who have used the mid plate type adapters and thier results. thanx

cutting the bell housing off is just too darn easy. I would rather do that than mess with all that adapter stuff

Another vote for the Ultra-bell...I have ran both, and cutting off the bell is the way to go. There really is nothing wrong with the adapter plate, the bell is just easier to deal with, especially if you are limited on room between the back of the block and the firewall. The studs sticking out off the adapter plate mean you need to have the tranny moved back an extra 2-3 inches before you can slide it forward.
Cutting off the bell is pretty straight-forward....cut it off even with the pump, bolt on the new one, and go. Another plus is the fact that you get built-in safety with the bell...no need for any external protection.

to bad they dont make a 4l80 ultra bell, i believe my only option is the adapter plate but want to make sure i am buying something that works. Thanx for the replies

why not a 4r100 or whatever ford called the electronicly controlled overdrive auto they put behind 460s in the 90's trucks?

or phone jw. if the ultrabell works on a th400 itll probably work on a 4l80e (the trans is an evolution of the 400) the jw tech department will be happy to talk to you.

just call ati or someone. I think you can get a blank bell to drill your own holes. but if not the adaptor plates are fine. we ran an adaptor plate on a 1000hp ride for lots of years.

What are you going to use to control it?

i want to run a POWERTRAIN CONTROL SOLUTIONS controller. Thanx for the info

im running a coan adapter with there crank pilot adapter. it work real clean you use your flexplate and starter so now buying a special flexplate or starter. just cut the motor plate down and it all cake of there im using it on a 700r4 it been in 3 years and lot miles.

Anybodies Powerglide kit will work with the 4L80 trans to a BBF engine; headers may be a slightly different story.

but are all adapters created equal? I contacted coan and they seem good to deal with

cooter wrote:but are all adapters created equal? I contacted coan and they seem good to deal with

we have run JW stuff to very high horsepower numbers. running Reid stuff now because it has different mounting points than the front pump. but all of that was on a glide

cooter wrote:but are all adapters created equal? I contacted coan and they seem good to deal with

im running the coan and it work great i had it on for 3 years without any trouble.. im using it with a 700r4 and have 140 passes so with nitrous and lots of miles over 10,000... overdrive is nice to have if you plan to drive it on the street and lockup is like another gear 70mph with 3.89 28" tall mt dr is 2300 rpm... you can lock mind in 2,3 and 4 makes that 3500 stall very streetable