2003 z06

Reply Subscribe

Thread Tools

Search this Thread

Feb 13, 2002 | 10:32 AM

#21

Hydra

Teching In

Joined: Jan 2002

Posts: 22

Likes: 0

Re: 2003 z06

The T56 is rated at 450 lb-ft

Feb 13, 2002 | 02:38 PM

#22

Kurt D

TECH Regular

iTrader: (2)

Joined: Nov 2001

Posts: 487

Likes: 1

From: Pineville, La

Re: 2003 z06

I've heard rumors of a 5-speed auto (5L60E or 5L80E?), not sure for which year model though, but I would think it would be rated high enough to handle the 350-400 ft-lbs. If there's a 427 then its probably gonna be T56 only. <img src="gr_images/icons/cool.gif" border="0">

Feb 13, 2002 | 03:43 PM

#23

Patman

TECH Senior Member

Joined: Nov 2001

Posts: 7,234

Likes: 1

From: Mississauga, Ontario

Re: 2003 z06

If they do go with a 5 speed auto I wonder if it could be retrofitted somehow to earlier cars?

Feb 13, 2002 | 04:25 PM

#24

66ImpalaLT1

TECH Addict

Joined: Nov 2001

Posts: 2,551

Likes: 0

From: St Louis, MO

Re: 2003 z06

http://www.gm.com/automotive/gmpower.../5l40_main.htm

There is the specs on the 5L40E

Doesnt take much torque but I bet they'll come out with a beefier transmission for the Cadillac Luxury Roadster, which is supposed to have a 5 speed auto.

Eric

Feb 13, 2002 | 05:53 PM

#25

Patman

TECH Senior Member

Joined: Nov 2001

Posts: 7,234

Likes: 1

From: Mississauga, Ontario

Re: 2003 z06

Yikes, those are heavy trannies! 176lbs wet! What does a 4L60E weigh? Isn't it closer to 125 to 140 lbs?

Feb 13, 2002 | 08:35 PM

#26

WhiteDiamond

TECH Apprentice

Joined: Jan 2002

Posts: 356

Likes: 0

From: Texas

Re: 2003 z06

The "rumor" mill seems to indicate the 5 speed auto will not come in the C5, but will be part of the C6 when it is released. I am also sure GM is going to get the power handling of the 5 speed tranny up as well, as the new sport Caddy is supposed to use it.

Todd

Feb 18, 2002 | 08:29 PM

#27

Closer_2001

TECH Apprentice

iTrader: (6)

Joined: Feb 2002

Posts: 363

Likes: 0

From: Clear Lake Area, TX

Re: 2003 z06

Having had the opportunity to drive a Trailblazer w/ the Vortec 4200 on two occasions (my 2000 Tahoe likes visiting the dealer several times a year for various problems), I can certainly see where the 5th ratio of the 5L60E will yield a significant performance increase. The Vortec 4200 comes on cam at 3800 RPM and pulls all the way to 6000.

The 5 speed gearboxes will provide benefits across the board.