3rdgen92maro

iTrader: (20)

hey guys just a question about my trans. Im looking into swapping my M6 to TH400 RMVB, trans brake and around a 3800 stall. My car currently just has bolt ons, suspension and lots of weight reduction...in the 3k race weight range. Now the question is if i swap to a TH400 how much would that help me out? btw i will be running a 4.10 gear with 2765/60/15 ET Street Radials.

thanks in advance

3DFORMULA

iTrader: (4)

Odd tire size there.

95z28camaro

iTrader: (15)

haha yea! wish i could fit a tire that wide, much less afford one! lol

Um are you on the stock 10-bolt? I kinda decided against a transbrake for my setup. Mainly because that it is a big jolt once you let go of the button, and if you want to find the weak point in your car that will probably show it to ya!

djsanchez2

iTrader: (14)

You should have enough room to hit 120mph at the top of 3rd (6000rpm)

The 1st gear ratio should get you out of the hole GOOD.

9sec93

iTrader: (67)

on my old cam-only LT1 set-up, i switched from a 700r4 with a 3600 stall to a th400 with rmvb and a 4500 stall and knocked off almost 2 tenths on motor and on a 150 shot. 11.90's NA and 10.90's on nitrous to 11.70's and 10.70's

TABBED 5.3

iTrader: (1)

what cam are you running?

9sec93

iTrader: (67)

it was a cc503.

3rdgen92maro

iTrader: (20)

woops..ment 275/60/15 LOL owell.

Im going to be going with either the cc306 or gm847 for my setup. So you guys think a TH400 will help me out and drop some time off my ET?

ndfrsd6

iTrader: (5)

simply put yes ....your 60 will drop massively ! i just did the same thing M6 to a TH400 but i went with a 5200 9in converter

3rdgen92maro

iTrader: (20)

awesome thats what im looking for. i cant get my car to 60' to save my life. So what do you guys think a 4k stall?

ndfrsd6

iTrader: (5)

thats nothing lol....i just put a 5200 in mine

3rdgen92maro

iTrader: (20)

i know i know lol. hey another question will the stock drive shaft work with a short tale TH400?

ndfrsd6

iTrader: (5)

i want to say yes you will need a drive shaft ....and 4000 stall for the street is np

3rdgen92maro

iTrader: (20)

damn it i was hoping i could get away with using the stock aluminum one i have....That's what i was thinking just run the 4k stall because the car will still see street duty during the summer.

lifeisgood

iTrader: (4)

why such a low gear?
i know you want a whole shot, but damn. any other mods and youll run out of rpm at the end of the track

nick97ta

iTrader: (3)

I installed a th400 with 3800 converter and t-brake, that dropped my 60' from 2.20 on the 6-speed to 1.51 on the th400. Both were on the factory 10 bolt with 4.10 gears.


Also you will need another drive shaft for the install.

StraightTimeStirrups

What is needed to Convert a T56 to TH400 Trans on a 93 Trans Am LT1?

Joe

StraightTimeStirrups

I have searched high and low on this forum and others and have not found any links to this conversion. I have found plenty on the LS* to TH400 so if you guys have any actual links that you can post up for me that would be a great help. I have tried in vain with every combination of phrases that I can think of and none have worked.

Thanks,

Joe

3rdgen92maro

iTrader: (20)

For the swap your gonna need to get a Trans, TQ Converter(Im pretty sure a standard GEN1 converter will bolt right up), Flexplate(I used a stock 4L60 for my swap), Trans Xmember(Used a bmr peice for my car), Drive shaft, shifter of your choice and a big trans cooler and a trans temp gauge is always a nice thing to have.

Wicked94Z

iTrader: (26)

I run a th400. you ran reuse your t56 crossmember with some simple mods. I have a nice billet protorque converter that would work well with your setup, it went 4000 or so behind a mild 383. You'll need a new driveshaft, I had a local shop build a 3" chromoly for 350 bucks.