If you can't get the block out of the car yet, at least pull the plugs on it if you haven't. That will give you a better idea what the cylinder walls look like as well as if you'll need to redo the heads too. Of course it won't give you a solid answer, but at least an idea to work with. Plug gaps that are closed, usually means chunks of piston are flying around... That means a full rebuild is in order, probably including at least a cylinder hone or overbore. Unless, of course, you already have new heads to put on the next block and/or the spun bearing block has no main damage.
