Do you have to change the valve cover gasket and the head gasket at the same time?

I bought the valve cover gasket and plan on changing it today. Next week I plan on changing the head gasket. Should it be done at the same time? I heard everytime that you take the valve cover off you have to change the valve cover gasket. Is this true?





Its a 1996 toyota corolla 1.8L if that matters|||What is wrong with your head gasket??? Is the engine overheating or blowing smoke of some kind?? Is this just an oil leak, here??? The valve cover gasket is done to stop external oil leaks, usually. Sometimes, you can just tighten the bolts and nuts down a little.|||Depending on the material..If it is cork..you should change it every time..if it is neopreme..it can be reused...but what I don%26#039;t understand is why do them seperatly..you have to take the valve cover off to replace the head gasket.|||you don,t have to keep changing the valve pan gasket if you don,t tear it by taking it off. but if your going to change the head gasket then do it first then the valve pan gasket.|||IF YOU ARE REPLACING HEAD GASKET, ALWAYS REPLACE VALVE COVER GASKET TOO,, BEST THING TO DO, IN THE LONG RUN,,,,