the front rotors at 10.5" and 4.5" 5 bolt are stock camaro rotors. I went out and measured those on the 84 V8 (non-z non-rs) camaro.

as for the rears...i know drum is stock on all but a few. i havce hte reference book loaned out right now so i can't look up what year came with disk or what interchanges.