What's the chance of the head warping on my Cavalier? It's a 1.8 8v. One of the coolant hoses popped off on the motorway a few weeks ago and lost all it's coolant while doing 60mph. The engine got quite hot and the head gasket is leaking a bit, straight out of the exhaust I think. There is a very slight oil/water mix in the header tank but the dipstick is clean and the car runs ok.
I just want to get the headgasket changed but I'm worried it will piss out again?