There were huge cracks too. That college professor had managed to damned near blow one side off of the engine block and keep driving. I wouldn't have thought it would run but it started easily when he came for it. Two or three rods had to be broken, perhaps a chunk of rod and piston had migrated. I don't know. One of those engines that I would have been curious to pull down just to see the damage but I didn't get the chance to. I have seen more damage to a racing engine but that is the most I ever saw in a street engine. Happened at pretty low RPM too.
Hu