4l60E, 700R4 or TH400?

[MudStainKILLA]

Allright here's the deal. Pulling the trigger on my exhaust cai intake and tune in july and im am starting to put together my laundry list of everything else i want to do. I have a good idea of what i want for and end result but I still have to lock some things down. One being transmission options. I currently have a 4L60E. Here is what i want out of my transmission. I want to keep it auto, Run a manual valve body, ratchet shifter and i want it to handle about 800hp. So what trransmission do you guys think i should go with? if you are wondering what my intentions are with the car here they are. I am looking to make the car a weekend warrior after this deployment. As far as track time I am looking more towards road tracks and auto x than the strip. I want to keep the car as road legal as possible through all of this. Any insight that you guys could provide would be great. I wont be doing the transmission for a while but im kinda a detail nazi lol. If there is any more info you need to give your opinion please let me know and i will be glad to provide.

[pajeff02]

700R4 and 4L60E are the same thing essentially. For that kind of grunt you would need a built 4L60E or a TH400. Only thing with the TH400 is that you will not have overdrive. I installed a Performabuilt Level II in our car about a month ago and love it. I think mine is rated to handle 600 hp.


Thread on building the transmission: http://www.ls1.com/forums/showthread.php?t=153471


Thread detailing the removal and installation: http://www.ls1.com/forums/showthread.php?t=156272

[MudStainKILLA]

lol PaJeff02 i should jsut start PMing you!!! you tune in on just about every thread i create! Ya i kinda figured the 700R4 would be ruled out quick but i didnt know if it would be a viable option seeming how it does have the overdrive but isnt electronically controlled. Didnt know if being electronically controlled would present an issue with me wanting to go with a manual valve body and ratchet shifter. Gotta go bring the wife shopping so i can order my parts tonight for the Exhaust and CAI. Ill check out those threads you posted after bravingthe mall man. Thanks for the advice pajeff02.

[pajeff02]

No problem.

[MudStainKILLA]

just read through both your threads, thats pretty cool they assembled your transmission right in front of you!.

[pajeff02]

Yes it was. I did not expect that at all.

[MudStainKILLA]

did you go with a 4L60E?

[pajeff02]

We street drive our car and play on the weekends at the track.

[67CamaroRSSS]

If you're road racing and auto crossing than a manual tranny would be my choice. "Viperized" T56 should work.

If 1/4 mile jaunts then the auto would be the choice.

[TLS_Addict]

Doesnt the 4l60E have a much lower first gear than the TH400?