In the process of rebuilding a 5.3 liter Chevy engine?

I’m in the process of rebuilding an engine. I can get a brand-new block 5.3 if I go that route can I put use my old pistons, cam, and crank. I have a used block with slight damage in one cylinder could it just be cleared up by having it honed or should I get it bored? Or if I find a good block with no damage in cylinder’s can I just hone it and reuse old internal parts.


Thanks