[Ian]

I'd believe a rod going through the side of the block, or even out through the bottom of the pan...but I do not believe that a piston managed to make it through the head, out through the hood and into a neighbors yard. I dont think it would even make it past the head. besides, most of the time when something lets loose inside a motor, its during the power stroke so all the crap ends up going down through the pan or out the side of the block. I also highly doubt that a piston could make it through a cylinder head and still be recognized as a piston.