I`d like to convert my drums to power disc by useing GM parts. Is there a combination that works by useing other GM cars of different years. If anyone has completed this procedure, I`d appreciate any tips

Sorry .I`m doing the swap on a 66 Chevelle

Take a look at the bottom right part of this page. There is a drop down menu ("hop to") that will scroll down to the topic of disc brake conversions. That will tell you a lot. Yes, you can use various GM brake parts to upgrade your car.