If you own a older model non-turbo Subaru or even a newer non-turbo model Subaru with the faulty head gaskets.  This service is a necessity to keep your car on the road.  Subaru realized back in early 2002 that there was an issue with the Dual Over Head Cam head gaskets and changed them for the turbo model cars.  Whether you got the older model Dual Over Head Cam (DOHC) gaskets or even the newer model Single Over Head Cam (SOHC) gaskets, at some point in time (generally between 80,000 - 120,000 miles) you will be looking at doing this service.

The service consists of removing the motor from the vehicle, removing the heads and sending to a machine shop to resurface the heads, vacuum testing the valves, and often times new valve seals, and or complete valve job.  Also replacing all gaskets associated with the removal and install; i.e. head gaskets, valve cover gaskets, valve cover washer gaskets, spark plug gaskets, intake/exhaust gaskets, etc...

*This is a good time to include a new clutch and new timing components if these have not been done yet or you are nearing these services in the future.  Install of these items are free while at time of this service.