it depends on if they need the whole actual HEAD GASKET replaced or just the head COVER gasket. your friend might have been talking about just the head cover gasket, which is a lot cheaper.
replacing the head gasket itself cost AT LEAST a grand, or less of course if you do it yourself, but it's a pretty complicated task.




lol... im hoping you mean the valve cover gasket
which is true it is a cheap/ easy install but head gaskets are alittle more complicated but usually run about 500$ or so (this of course depending on vehicle type)

