What size key way on the k1 technology crank?
I know the back keyway is stock ,what size is the front slot??

 

I'm not sure of the actual measured size but I can tell you it's the same as a small block key. If you need the actual dimension I can probably get it for you. Most auto parts stores will have small block keys and they're all the same.

 

Did you ever find an answer to this? I'm in the same boat, trying to install my IW balancer.