LLY to LBZ

Madspeed

Fat Bastard
Mar 22, 2007
315
6
18
Elk Ridge Utah
I have an LLY SC V with 6 speed ug. I want to throw it in my 07 classic Do I need to change valve body or did SC just use the 6 speed valve body for their UG. I called them and left a message but Id like to proceed asap.
Thanks
 

Bdsankey

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I have an LLY SC V with 6 speed ug. I want to throw it in my 07 classic Do I need to change valve body or did SC just use the 6 speed valve body for their UG. I called them and left a message but Id like to proceed asap.
Thanks

NSBU is in a different location on the 5spd vs 6sp as well as a different selector shaft.
 

Chevy1925

don't know sh!t about IFS
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Oct 21, 2009
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change it all. you will be running a different TCM to pair with the LBZ ECM and IIRC, the current tcm you are running will not work well with the LBZ ecm (if at all).

i may be wrong on it but i dont think so. the TCM you have now has segments from a 6 speed tcm converted over to then work in the older TCM and linked all together. So you are still on old base tech for the year of the truck so to speak
 

Mike L.

Got Sheep?
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Aug 12, 2006
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5 speed TCM's don't like 6 speed solenoids and vice versa. They can work, but not as they should.
 

Madspeed

Fat Bastard
Mar 22, 2007
315
6
18
Elk Ridge Utah
No No Im going to use my 6 speed tcm in my 07 LBZ I just want to know what in the trans will cross over from the lly with a six speed upgrade.
 

Mike L.

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Aug 12, 2006
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No No Im going to use my 6 speed tcm in my 07 LBZ I just want to know what in the trans will cross over from the lly with a six speed upgrade.

Linkage and internal mode switch. Shift kit your 6 speed valve body.
 

Madspeed

Fat Bastard
Mar 22, 2007
315
6
18
Elk Ridge Utah
Linkage and internal mode switch. Shift kit your 6 speed valve body.

Sooo I need to change. "Linkage and internal mode switch. Shift kit your 6 speed valve body"
I think I have a and actual 6 speed VB and the linkage out back. Ill just put a Shift kit in it. The plan is to steal the trans coupled with the spare LBZ eng i have and put them into my duraburb and pull out the twin turbo setup. Emissions laws changed so its not gonna fly here. If I get caught smoking and sent to reff Im F'd They strip my emissions lic from my business and me..
I can however move the twin turbo LBZ/LMM into the 71 pickup I had on the back burner Soooo 1k hp 71 crewcab? LOL
 

Madspeed

Fat Bastard
Mar 22, 2007
315
6
18
Elk Ridge Utah
Twin turbo Camaro would be better...

Yes it would and NO IM NOT putting a heavy ass over priced duramax in it.
I was going TT but now Im rethinking an LT4 Supercharged due to I want to run it on track days. I have the 6.0 out of the suburban I am upping compression and Lq4 heads with a big lump stick. Twin disck clutch on the shelf with a T56 Viper 6 speed.