6 speed transmission with 6.0L - The 1947 - Present Chevrolet & GMC Truck Message Board Network

shenk10 · 09-22-2010, 03:02 PM

Does the 6.0 bolt up to a 6 speed transmission or is there an adapter that is needed? What is everyone's opinion on a 6 speed trans instead of the 4?

1LoC10 · 09-22-2010, 03:52 PM

You talking a T56 or the auto?

Pop's C-10 · 09-22-2010, 04:36 PM

auto or stuck...all depends on tha bellhousing for manual...6 speed auto's only came behind ls motors

shenk10 · 09-22-2010, 07:19 PM

sorry about that, i was talking about the 6l80e and the lq4 6.0 truck engine

foamypirate · 09-22-2010, 08:56 PM

Quote:

Originally Posted by shenk10

sorry about that, i was talking about the 6l80e and the lq4 6.0 truck engine

As long as you don't have an early LQ4 with the longer crank, the 6L80E should bolt up. Controlling it is another matter.

You really need a GenIV engine/ECM to work with it, or a MAST controller. I think Speartech may also offer a kit that will work with an LQ4/6L80e, but I'm not positive.

Big Port Jimmy 6 · 09-22-2010, 10:30 PM

Quote:

Originally Posted by foamypirate

As long as you don't have an early LQ4 with the longer crank, the 6L80E should bolt up. Controlling it is another matter.

You really need a GenIV engine/ECM to work with it, or a MAST controller. I think Speartech may also offer a kit that will work with an LQ4/6L80e, but I'm not positive.

Yep got to be 58x system. They have seperate modules for the engine and trans.

MONTEZ · 09-23-2010, 07:18 AM

Quote:

Originally Posted by Big Port Jimmy 6

Yep got to be 58x system. They have seperate modules for the engine and trans.

The MAST controller can make it work with 24X, that was what my plan was before I picked up the L92.

shenk10 · 09-23-2010, 12:47 PM

so has anyone done this then? is that that much of an advantage to doing it?

MONTEZ · 09-23-2010, 12:50 PM

Quote:

Originally Posted by shenk10

so has anyone done this then? is that that much of an advantage to doing it?

I say if you plan to abuse it, use a 4l80e. Just my .02

foamypirate · 09-23-2010, 10:02 PM

Quote:

Originally Posted by MONTEZ

I say if you plan to abuse it, use a 4l80e. Just my .02

Based on my research, the 6L80E seems to hold up pretty well until around 520-550whp. Haven't really seen anything on the 6L90E, but it sure is beefy, so I'd guess around 600-630whp.

MONTEZ · 09-23-2010, 11:09 PM

Quote:

Originally Posted by foamypirate

Based on my research, the 6L80E seems to hold up pretty well until around 520-550whp. Haven't really seen anything on the 6L90E, but it sure is beefy, so I'd guess around 600-630whp.

Yeah but the 4l80e will be easier to program. The 6l80e can be done, it just takes a lot of tweaking.

68GMCCustom · 09-24-2010, 12:03 AM

tci makes a "e" trans controller now that will run a 6L80 I think

foamypirate · 09-24-2010, 12:40 AM

Quote:

Originally Posted by MONTEZ

Yeah but the 4l80e will be easier to program. The 6l80e can be done, it just takes a lot of tweaking.

Yeah, that's true. 6Ls seem to be a little more touchy about their programming, due to their direct clutch to clutch setup.

shenk10 · 09-27-2010, 04:41 PM

okay thanks for all the info guys, I think I will probably just go with the 4l80e because it's easier, just wanted to know about the new stuff out there

09-22-2010, 03:02 PM	#1
shenk10 Registered User Join Date: Feb 2009 Location: New Park, PA Posts: 312	6 speed transmission with 6.0L Does the 6.0 bolt up to a 6 speed transmission or is there an adapter that is needed? What is everyone's opinion on a 6 speed trans instead of the 4? __________________ Jordan 1972 Chevy K5 Blazer, 6" Lift, 35x13.5R15, 6.0/6L80E/NP205 1982 Chevy C10 SWB, 2006 LS2/4l70e In progress.... http://67-72chevytrucks.com/vboard/s...d.php?t=439860 Last edited by shenk10; 09-22-2010 at 03:02 PM.

09-22-2010, 03:52 PM	#2
1LoC10 Insert Title Here Join Date: Feb 2006 Location: Dyer, Indiana Posts: 5,679	Re: 6 speed transmission with 6.0L You talking a T56 or the auto? __________________ BOBBY _69 SWB_ 1000 pics of 67-72's>> http://s193.photobucket.com/albums/z...-72/?start=all <<

09-22-2010, 04:36 PM	#3
Pop's C-10 Registered User Join Date: Jul 2010 Location: memphis Posts: 2,537	Re: 6 speed transmission with 6.0L auto or stuck...all depends on tha bellhousing for manual...6 speed auto's only came behind ls motors

09-22-2010, 07:19 PM	#4
shenk10 Registered User Join Date: Feb 2009 Location: New Park, PA Posts: 312	Re: 6 speed transmission with 6.0L sorry about that, i was talking about the 6l80e and the lq4 6.0 truck engine __________________ Jordan 1972 Chevy K5 Blazer, 6" Lift, 35x13.5R15, 6.0/6L80E/NP205 1982 Chevy C10 SWB, 2006 LS2/4l70e In progress.... http://67-72chevytrucks.com/vboard/s...d.php?t=439860

09-23-2010, 12:47 PM	#8
shenk10 Registered User Join Date: Feb 2009 Location: New Park, PA Posts: 312	Re: 6 speed transmission with 6.0L so has anyone done this then? is that that much of an advantage to doing it? __________________ Jordan 1972 Chevy K5 Blazer, 6" Lift, 35x13.5R15, 6.0/6L80E/NP205 1982 Chevy C10 SWB, 2006 LS2/4l70e In progress.... http://67-72chevytrucks.com/vboard/s...d.php?t=439860

09-24-2010, 12:03 AM	#12
68GMCCustom Truck and auto performance nut Join Date: Feb 2007 Location: McKinney,Texas Posts: 3,848	Re: 6 speed transmission with 6.0L tci makes a "e" trans controller now that will run a 6L80 I think __________________ Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken

09-27-2010, 04:41 PM	#14
shenk10 Registered User Join Date: Feb 2009 Location: New Park, PA Posts: 312	Re: 6 speed transmission with 6.0L okay thanks for all the info guys, I think I will probably just go with the 4l80e because it's easier, just wanted to know about the new stuff out there __________________ Jordan 1972 Chevy K5 Blazer, 6" Lift, 35x13.5R15, 6.0/6L80E/NP205 1982 Chevy C10 SWB, 2006 LS2/4l70e In progress.... http://67-72chevytrucks.com/vboard/s...d.php?t=439860

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