6L50 (or 6L80) into VX with L67?

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6L50 (or 6L80) into VX with L67?

Postby immortality » Sun Dec 27, 2020 1:30 pm

There have been a few threads lately about using 6L80 transmissions in 2nd and 3rd gen Commodores with LS motors so I was wondering if the 6L50 would be a good candidate to replace the 4L60 behind our L67? From what I have read the 6L80 fits without body/trans tunnel mods so no doubt the 6L50 would be the same in that regard. Our 4L60 is screaming for mercy (especially 3rd gear) so the question is do I spend money on a full rebuilt on the 4L or upgrade to a stronger box with more gears?
Last edited by immortality on Mon Dec 28, 2020 11:15 am, edited 1 time in total.

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Re: 6L50 into VX with L67?

Postby vlad01 » Sun Dec 27, 2020 2:02 pm

I have seen a number of people upgrade to TH400 since there are adapters for the v6 already on the market for them.
I'm the director of VSH (Vlad's Spec Holden), because HSV were doing it ass about.

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Re: 6L50 into VX with L67?

Postby immortality » Sun Dec 27, 2020 2:31 pm

It's got to be a box with overdrive, it's my missus daily driver that cruises up and down motorways. I'd go T56 personally but I've been told in no uncertain terms it's not an option!

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Re: 6L50 into VX with L67?

Postby 'quipt4it » Sun Dec 27, 2020 2:32 pm

The 6l50 has an odd bellhousing pattern.
The controllers are around $875 (US).
Plan on a rebuild for the '50 anyway
Plus a lot of 'sorting' and tuning, tailshaft, mounts etc
http://www.zerogravityperformance.com/p ... 90e-6l50e/
FWIW, the 4l60e has more torque capacity, 360 lb-ft vs. 332 lb-ft (eng. tq).
Nice swap, but is it worth it?

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Re: 6L50 into VX with L67?

Postby immortality » Sun Dec 27, 2020 5:12 pm

'quipt4it wrote:The 6l50 has an odd bellhousing pattern.
The controllers are around $875 (US).
Plan on a rebuild for the '50 anyway
Plus a lot of 'sorting' and tuning, tailshaft, mounts etc
http://www.zerogravityperformance.com/p ... 90e-6l50e/
FWIW, the 4l60e has more torque capacity, 360 lb-ft vs. 332 lb-ft (eng. tq).
Nice swap, but is it worth it?


Maybe go straight to the 6L80?

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Re: 6L50 into VX with L67?

Postby 'quipt4it » Sun Dec 27, 2020 5:24 pm

Better option...if you're bent on it :twisted:

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Re: 6L50 into VX with L67?

Postby 'quipt4it » Sun Dec 27, 2020 6:15 pm

Link to bellhousing/adapter
https://www.cnc-motorsports.com/quick-t ... -9070.html
This is steel so quite heavy, but I think otherwise it will do?

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Re: 6L50 into VX with L67?

Postby vlad01 » Sun Dec 27, 2020 6:36 pm

That's the old school buick/pontiac pattern, L67 uses the GM metric 60 pattern.
I'm the director of VSH (Vlad's Spec Holden), because HSV were doing it ass about.

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Re: 6L50 into VX with L67?

Postby 'quipt4it » Sun Dec 27, 2020 6:42 pm

vlad01 wrote:That's the old school buick/pontiac pattern, L67 uses the GM metric 60 pattern.

Any alternatives?

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Re: 6L50 into VX with L67?

Postby vlad01 » Sun Dec 27, 2020 6:43 pm

This gives a few auto options but nothing electronic or with more than 4 speed.

https://www.facebook.com/13907284611499 ... 184845817/
I'm the director of VSH (Vlad's Spec Holden), because HSV were doing it ass about.

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