L67 Vs L36 flexplates

[robkeith]

Hi,

Im looking to install an L67 into my early 4L60 trans (not electronic)

I know that the flexplates on the L67 are different to the standard ecotec, a different balance and that the L67 also uses a larger diameter torque convertor

My question is:- will the standard T/C bolt up to the L67 flexplate?

I have rear conflicting reports on this (US sites say NO) but aussie sites say YES??

thanx for your help

 

[Immortality]

There does seem to be conflicting info on this subject.

The US based l67 use a different converter with a different bolt pattern. See

ZZP Heavy Duty Flex Plate

Finally an affordable upgraded flexplate for your Series II and III 3800 car with the 4t65e transmission. It has both torque converter bolt patterns, 258mm and 245mm so you can run either torque converter. This one will not break, it uses a better alloy, 50% thicker than stock, and is "Yellow...

zzperformance.com

But I'm lead to believe on the aussie based cars they use the same bolt pattern. There is a thread somewhere on this forum where one of the members swapped out a ecotec converter with L67 using the same flex plate.

 

[Lex]

There is a thread somewhere on this forum where one of the members swapped out a ecotec converter with L67 using the same flex plate.

@EYY I think is the member that did the conversion?

 

[Immortality]

I think so.

 

[EYY]

I can’t see why that wouldn’t work.

I did fit a vt l67 trans including converter, to my vs with ecotec (using ecotec flex plate). L67 to th700 should be no different. I’d be fairly confident that you could use your original th700 converter with the l67 flexplate.

https://forums.justcommodores.com.a...mission-compatibility-and-differences.254449/