Anyone ever looked at putting front disc brakes from a 1989 Silverado on front of chevelle or maybe use the calipers and rotors. I Got one taking up yard space, might as well put its parts to good use!

Any thoughts or Ideas?

Interchangeable parts aren't.
A "Law" according to Murphy.:(

Wrong bolt pattern........... not worth the trouble IMO

Not even the Calipers or Brake booster ?

calipers- maybe. but you'd need to get some thicker rotors to work with them.
booster- maybe, but the mounting bracket would be different.