Help a brother out.. 318 questions

I got 2 used blocks..one from 68 and one from 88 If memory serves me right. Both replacement blocks came w pistons and a few other parts but I have a whole engine of parts on the boat. Just wanna swap the blocks. I'm at the rebuild stage and I'm only trying to put it back together once if I can help it..
"I got a cracked block and wondering if I can hone it"...…. Always nice to get the rest of the story, sure helps those trying to help you... :) :poke: