not sure if this is going to post the right guy. I have a heavy I pulled apart and will gladly send you pictures if you give me a number to send them to this blew me away when I saw it I've never even heard of a valve seat falling out unless it was a bad rebuild this was factory. But what makes this one special is that 6 intake valve seats or hang out stopping the valves from closing. The seat is completely lose from the head on 3 cylinders on each side. one exhaust valve has a section broken out of it that has done damage to the head when the piece was beaten up by the piston. the thing that puzzles me does that all 6 of them struck the top of the piston but only appear to have hit once or twice. this means all 6 fell out at the same time. exhaust seat have gone out before.
