Oh dear God! 318 stroker

349 ci stroker, look at .030 283 chevy pistons for a .005 over bore, 283 .060 pistons for a ,035 over bore, but pin holes need cut bigger, skirts need clearance'd from crank throws and then valve notches are off and need machining,..then balancing this hole deal, cheaper ways to do better! dad always said a hard head makes a soft ***, good luck!