Those cylinders look like they were full of water and broken by freezing. It's pretty unlikely the absence of coolant holes in the head had anything to do with it. Those "steam holes" are needed on the siamesed cylinders of engines like the 261 and the small block 400 V8 to promote coolant flow up the sides of the cylinders and prevent the formation of localized boiling where the coolant can't flow between cylinders. Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!