I've got a '99 Outback Legacy Limited with the 2.5 DOHC in it. It had been overheating off and on and long story short, blew out the head gasket. What would be the best suggestion from this point? Do I (a) rebuild the motor without knowing the extent of internal damages (est $2000-$2400 @shop, half if I do myself), or ( look into a rebuilt motor swap? (est $2000). If i go with a swap, I see allot of people suggest to go with the 2.2 SOHC. Why is that? This is really my first import. Generally I always thought that "There is no replacement for displacement".