It's obvious we can't help if our suggestions and troubleshooting tips are being rejected without any investigation. A "wrong" size coolant hole in a head gasket won't fill a crankcase with water in a matter of a couple of minutes. There's a BIG hole in the water jacket somewhere.
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!