So what was the diagnosis then rick ? Did you have hydrolock ?, which prevented the engine turning over ? Caused by head gasket failure ... on both heads ?..or Have you driven through any deep water which caused this ... We had a member recently who experienced this lock up .. He had to renew the head in question , as it had a crack, which allowed coolant to fill the combustion chambers. The head could not be skimmed but only replaced. I hope all goes well for you ,but has the car overheated recently , or some other involvement with water ? Very rare that this issue has come about without some sort of an associated event. I hope all goes well for you if you do get the heads skimmed.... good luck ....