No, not what everyone else has said..the first to respond were telling him how to beat the pistons out of a rusted ass piece of cast iron.I echo what everyone else has said, chances are the cylinders are going to be worthless. Why do you want to reuse the block? If it's a numbers matching block to a car that you're looking to do a concours restoration chances are good that you'll have to sleeve a number of, if not all of, the cylinders.