Blown power head due to hydrolock

[accujohn]

After a sudden stop on the water my 2008 F250 stalled I was told I had a hydrolock that seized the engine. My insurance paid for a new block. I had the motor in for 10 hr service and was told everthing was perfect. The next weekend I stopped again this time not that suddenly and again the motor failed and again I was told a hydrolock. Does anyone have any ideas as to what is happening? could there be something missing from the motor that is causing this to happen?

[99yam40]

My thoughts are that the sudden stop causes the motor to pick up water from the wave behind the boat and filling the cylinders