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

[immortality]

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?

[vlad01]

I have seen a number of people upgrade to TH400 since there are adapters for the v6 already on the market for them.

[immortality]

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!

['quipt4it]

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?

[immortality]

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?

['quipt4it]

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

['quipt4it]

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?

[vlad01]

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

['quipt4it]

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

Any alternatives?

[vlad01]

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

https://www.facebook.com/13907284611499 ... 184845817/