Usually if you go to a GM dealer they will replace it with the shitty kind they take out, a cheap one. Buy a Fel-Pro or however you spell it head gasket, they are a metal gasket and work VERY well, my friend has a 95 Cavi as well with 262,000 KMs replaced his headgasket at about 200,000KM with a Felpro and not a problem since and he beats the hell out of the car, also a 2.2. Hope this helps!