Quote Originally Posted by seanparker3 View Post
I was wondering if my thermostat being stuck open has anything to do with this?
as its been stated here over and over, remove your spark plugs (20 minute job tops) and crank the engine, if it don't crank its seized, if it does crank, and antifreeze comes out of a cylinder, you will know its hydro locked. ( hydro lock means you have fluid in the cylinder therefore it wont rotate)

and no a bad thermostat wont do anything unless it froze in the closed position and you over heated the engine.