You'll be a lot better off if you go ahead and bore the engine and put new pistons and rings in. The cylinders will be tapered as well as out of round. Causing new rings to have to constantly flex to conform. Even then they may not seal very well against an out of round and tapered bore.
If they do seal, they won't last long and will fail to seal.
As was mentioned, another very good possibility is the piston slapping in the bore. Annoying at the least, but a skirt could break off the piston from slapping the cylinder.
