redsscamaroboy

iTrader: (7)

I'm planning on swapping the M6 from my 98 Trans Am in favor of a stalled auto.
Question I'm trying to figure out is: go 4L60E or 4L80E?
Can someone shed light on the pros and cons ? Remember, I asked for it so don't hold back .

clinebarger

For a daily driven "Bolt-On only" car, 4L60E all day long.

If you have bigger plans down the road far as horsepower & torque, A 4L80E is a better choice.

redsscamaroboy

iTrader: (7)

Planning on a HCI summer daily running a PT4000 stall.
Hoping for a low 11 second summer cruiser

Firebirdmuscle

iTrader: (16)

4l80 all the way then.

Latch

iTrader: (8)

4L80E is a far superior transmission. Go for the 80.

SteenH

80e of course!

redsscamaroboy

iTrader: (7)

Thanks guys, I need to do a lot more research on M6 to 4L80 E conversions .
I have a 80 in my Race car ( F1a Procharged Z28) but it's a manual shift and manual lock up set up and that's not what I want for the Trans Am .
Also I bought the car set up already, so anything to do with the 4l60-4l80 swap was done by the previous owner not me.
Now I want to ditch the stick and go auto in my other car that's more of a daily, fun ,summer type car.

SPRAYED 01

iTrader: (22)

If I could do it over (which i guess i can) I would go 80. I did an m6-a4 swap and found a guy with a Trans Am that wanted the opposite so we swapped everything and it was a great deal.

I now have about 900whp with a turbo and still the rocking the 4l60e. Its a level 7 from FLT with a trans brake and its been working great for over 5 years, havent even changed fluid.

But that being said I have a lot of money in it. I could have built an 80 for about the same.

redsscamaroboy

iTrader: (7)

I found a 140,000me 4l80e out of a 2000-2001 truck.
Sourced most of the other pieces needed: console, shifter, pedals etc
All for approx $850.
Now still need to find a wire harness to go from M6 to 4L80e , a PCM to put the truck bin file in , flywheel, convertor and shift cable.

Mappinsj

lets not make a 4L80 sound easy as 123 to swap though here, even though it is a good idea, its NOT like you dont need to do some good research!

Blackbird-WS6

iTrader: (15)

yes the 80 is better, no question there BUT is a 11sec street car really in need of a 80 to be reliable?

Cesarbambam

80 is the way to go. Segment swap on hptuners n harness splice and it will drive just like a 4l60. No manual shift needed.

redsscamaroboy

iTrader: (7)

Exactly what I want.
My "race car" for lack of a better term is a 4L80 e swapped 98Z28 and it's a manual shift that is fun to drive but it gets old shifting all the time with the Rachet shifter and manually locked convertor.

30th t/a

iTrader: (51)

I did the M6 to 80e swap on my last twin turbo setup. If I could have done it over, I would have just went with a level 5 RPM 4l60e. Reasons are lighter weight, plenty strong enough for what I wanted (600+rwhp) and less expensive when you factor in the extras needed for the swap.

If I was shooting for 750 or more I would go 80e.

redsscamaroboy

iTrader: (7)

Thanks man , that's exactly what I'm concerned about .

redsscamaroboy

iTrader: (7)

H/C/I are done, I decided to keep the M6 for a while longer and installed a Tick master cylinder and speed bleeder .
Still thinking about swapping the M6 for an auto , just not yet.