Kirk,
You should be able to find what you want here
www.porterfield-brakes.com/
By looking through the catalogues, you can compare the dimensions of your
pads to find out what style they are.
The Porterfield R4S come highly recommended (search CC for brake pads), I have some coming next week. My CCX does not stop to my satisfaction even with Wilwoods on the front. I will let you know how they work.
I also purchased new pads for the rear (Lucas/TRW pads) same as used on ERA cars. Going to install this weekend. I'll keep you posted.
Ray