One problem related to blown head gasket has been reported for the 2000 Subaru Outback. The most recently reported issues are listed below.
My left head gasket blew in December 2002. It was under warranty at 30,000 and covered. The same head gasket blew again last week at 43,000 miles. It was under warranty and covered. This doesn't seem right to me. Has this been a problem with other Subaru vehicles. My dealer assures me it should be okay now. I am not so sure. . . If it blows again after 60,000 it is not covered. The dealer said with the vehicle's history, they would probably cover it.