I go on NC.org quite a bit to read up on some info. They are always emailing companies about when parts are coming out. This is the most recent email that I found I thought that I would share...
We are working on the 1zz and 2zz cam cores. 1zz will be released first
(about 3 months) and the 2zz will follow at the appropriate time.
Thanks for your interest in Crower,
Crower Cams & Equipment Co Inc
3333 Main Street
Chula Vista CA 91911-5899 USA