Cents

iTrader: (4)

Will a 700r4 trans bolt to an ls3?...is that the best trans to hold 500 hp?

Bo185

Yes and a 6l90!

Rodder

iTrader: (2)

700R4 is crap. 4L80E if you have room for it...

Crowder

iTrader: (6)

th400, what more can you ask for?

cherryelky305

iTrader: (2)

overdrive? a built 4l60e or a 4l80e would work great. whats your application?

Stu Cool

iTrader: (13)

Good question, how do you plan to use the car?

Pat

Cents

iTrader: (4)

Its going in a 2000 pontiac firebird...Its going to be my everyday driver that i take to the drags on some weekends...so overdrive is a must.

ryanvv355

iTrader: (17)

4L80E, enough said

Bo185

The 6l90 has a nice first gear and double over drive. And will work with the later Gen IV LS3. So you could have a conservative rear end ratio of 3.55 and still have a good launch as well as good fuel mileage.

First 4.03
Second 2.36
Third 1.53
Fourth 1.15
Fifth 0.85
Sixth 0.67
Reverse 3.06

89LS1RS

iTrader: (1)

with a 4.03 first gear, you could run a 2.73 gear and still get a good launch. 4l60es and t56 are around 3

saad94

I like 700r4 no elect.

Rodder

iTrader: (2)

I've toasted the 3rd gear clutches in 700R4's too many times, and the gear spacing between 1st and 2nd SUCKS. 4L80E, TH400, or TH350.

Since it's going in a 4th gen daily driver, I think 4L60E would be the first choice since it's a bolt-in. I think the 'E solves the 700R4's 2->3 valvebody problems--does anyone know for sure? On the other hand the gear spacing still sucks compared to a 4L80E or TH400.

Cents

iTrader: (4)

I also want it to be an automatic transmission so would i have to build the 4l60e or 700r4 to hold 500hp???

b005td

iTrader: (9)

it totally depends on ur budget

406 Q-ship

iTrader: (1)

4L60E is the same internals as the 700 just has the electronic valve body, so it still has the weak 3rd gear drum and the big 1st to 2nd drop. The 4L65E has the sun gear that has 5 internal gears making it slightly stronger, but the 65E still has the bad 1st to 2nd drop. The 4L65E is still not made to handle any real torque, abuse, Nitrous, or a heavy car. Go 4L80E for strenght or hang an OD on a TH400.

saad94

I bought this kit from Dana he is a good guy
https://www.700r4l60e.com/store/prod...&cat=19&page=1