Will 1989 Camaro RS brackets work on older 350?

I found a 89 Camaro RS with 305 TBI set-up. I am building a 38 Chevy and I want to use all the brackets, a/c set-up, power steering pump, alt, etc. Will these bolt up to an older 350 block and heads (pre 87ish???)? Thanks

P.S. if anyone needs parts or the whole car less eng/trans I'll be parting it out.