There has been some discussion a while back about adapting the 923 to a 6 cyl. I hope the experts with that knowledge will chime in.

Sounds like you are on the right track. I have read that the 923 has lower gears than the 915, so that may be an advantage or possibly a concern.

Where's Matt when you need him? :cool:

Good luck with your project.

912e Trans
 

Not saying I am an expert, though I have been doing these cars for 45 years, and I couldn't do it and the experts I talked to said it can't be done. Changing the main shaft of trans is the only way. Wish there was.
For what it's worth
CSN&Y

I will trade you a 901 tranny for the 923 tranny.

There was a thread in marketplace a year or so ago that Matt contributed to that is semi relavent.

923
 

Something happening here. I could be interested.

...hang in there Dan. This guy's committed.

Bill K

All things aside, I have to say the clutch feel pedal of the 915 far surpasses the feel of the 923. Unless you like a leg workout :)