the key word is c5, or c6 thats where the stigma comes in. but aftermarket parts are aftermarket parts. unless everything has a gm part number on it. i am a mopar guy aswell, i used to do "the get there in a straight line as fast as you can thing" but to let the nomenclature used on a part keep you from building the car you want, i don't understand... it would be the same with a mustang rack and pinion, a toyota turbo, how many after market steering columns are gm style. but that dosen't stop them from being used. the key word i think is style. c5 style, c6 style ect.. they are just chassis parts,
i had a friend who ran smallblock fords he would install chevy vales in his ford heads. but are they chevy valves or just valves?
just my $.02