Okay, if you removed the plugs and it still won't turn, it isn't hydrostatic lock caused by coolant getting into the cylinders. As far as the head, the only thing I can think of is if the cam would lock up, but I would think it would have made noise. It could be a rod or crank bearing, but again, you should have heard it.
Wednesday, September 10th, 2014 AT 5:09 PM