VortecMax trans?

[LS7]

What transmission does the vortexmax have? 4L65E or 4L80E? The reason I'am asking is b/c in the 06 Silverado brochure it says the vortexmax comes with the Hydra-Matic Super Duty 4-speed auto, where as on the SS and 2500HD pickups the 6.0L comes with the Hydra-Matic Heavy Duty 4-speed auto. Which is which?

Also, does anybody have a 5-speed manual with the 6.0L in a 2500HD or know how strong of a transmission they are? How much extra HP will a 5-speed take before you have to upgrade the clutch?

[KySilverado]

According to this site:

http://media.gm.com/us/powertrain/en/produ...ng%20trans.html

Its a 4l65E

[1slow01z71]

Its a 4l70e new version of the 65e

[Faze2183]

anyone know the specs of the 4l70? yet?

[1slow01z71]

Not much info as of yet but it seems they have heat treated a few critical parts and revised the clutch pack but other than that it seems it is a dressed up 65e.

[RedHeartbeat]

When are the 6L65e and 6L80e supposed to hit the market? I see Saturn already is running a 5 speed auto.

[1slow01z71]

No 6L65e to my knowledge but the 6l80e will be out shortly in the high end Caddy performance vehicles followed by other vehicles in GMs line up shortly.

[RedHeartbeat]

The Cadillac has a 6 speed automatic in the STS-V. I wonder if it's a 60 series or 80 series transmission. The regular Cads have a 5 speed auto.

[1slow01z71]

The V series will have the 80 series 6 speed in it FYI

In march Im am going to try and attempt the 6L80e conversion in a truck there is one other person working it right now that I have talked to on a couple of occasions and it just may be a viable option

[samills]

Looking at the charts for the different trannies in the above link, the 4l80 will handle more torqe and HP than the 6l80.