How much should I expect to pay for a head gasket replacement on a 95 Mustang v-6 3.8l?

 

I don't have a quote for you but must warn you. This may be the tip of the iceberg here.

There are probably a dozen ways a head gasket can fail. If the failure is coolant into the crankcase. This places coolant in your oil. Cooland and bearings equals death to the bearings.