Recently, when I was pulling my 330 down for the rebuild, I found it had a Competition Cams (as Comp Cams was known years ago) 252H cam. I noticed the "CWC" ID on the cam something which some of my early Hemi blocks have on them... that's the mark of the foundry that made the castings.

My new Camcraft cam is marked the same.

I always thought it was just another MOPAR facility but, after a Google search, I found out the real story...

http://www.cwctextron.com/history.html

I found it interesting...