bmxer8699

iTrader: (16)

im contemplating if the 4l60E will get the job done for 400hp or go with the 4l80e? I have no knowledge about transmissions and am curious to know if i should stick with the 60 and rebuild it? or just go with the 80e?

Conditions of my car:

Never go to the drag strip, street use only
only want 400hp,
have 3200ss stall. with tranny cooler

GO BABY GO

iTrader: (15)

Heat and High RPM's are the killers of that transmission. You already have a tranny cooler and if you dont intend to raise the rev limiter than your probably pretty safe. The only other thing you may be interested in a shift kit so that they dont have to raise line pressure.

Perfomabuilt is a well like option around here if you were looking to talk to someone in full depth about transmissions or want to get a new one.

97blkz

iTrader: (1)

A well built 4l60E will indeed hold up. I have more HP than you and for 2 years I have been fine. The trick is picking the right builder and deciphering thru the BS.

performabuilt

iTrader: (25)

Please check out our level 2 or give us a call and we can talk about it
Thanks

Gilbert@Ace Racing

A well built 4L60E can take 400 hp for a very long time. There are some mods that should be implemented in order for you to get longevity out of the unit, but it should be just fine if it's built by the right folks.

In order to install a 4L80E one would need to make substantial changes to the car, including a stand alone controller. Not too big a job overall, but I just don't think it is worth the investment in this scenario.

g

bmxer8699

iTrader: (16)

^ thanks, that was what i was trying to figure out.

so in the end if my tranny craps out, just rebuild it?

wheres a good place in dfw that would do it?

NC98Z

iTrader: (1)

Now the truth. You can buy a 700hp stage 2 from Performabuilt cheaper than you can have your 4L60e rebuilt for.

97blkz

iTrader: (1)

I love when peeps quote hp #'s without car weight etc..

performabuilt

iTrader: (25)

I think I coverer that in the FAQ page on our site and here several times , Its a general guideline and the numbers are based on F body and experince with B body cars. They are only listed so people can get some idea up front about what they need and cost. Each order is reveiwed by me and if someone has not ordered adequatley for there needs I contact them and disscuss it with them. The last page of our order system ask such questions as weight , rear wheel ratio, estimated RWHP ETC.

Hope this clears that up

performabuilt

iTrader: (25)

I think I covered this before and its covered in our FAQ page but the HP numbers on our site are only a general guide line so people can get and idea of what they are looking for and cost, The numbers are based on B and F body cars we have had experince with which should give the weight range.
We do however reveiw every order and in the final page of our order forms theres a place that ask about weight and gear ratio etc, And if we feel a customer has under ordered then we do contact and disscuss it with then the same as when a customer orders a level 2 or 3 for a car that is stock and is going to stay that way and discuss that with them also.
Hope this clears that up

GMRACER13

iTrader: (1)

You don't need an aftermarket stand alone controller if the car is already equiped with a 4L60E. All you need is a conversion harness which allows you to use the factory computer.

I agree that a 4L80E is over kill for an F-body making 400 HP.

TAwhore

shouldn't a properly maintained 4l60e surrive 400 rwhp if the shift points haven't been changed? from what i've been asking it's kinda of a crapp shoot but some people have done it