So I have a 1998 Subaru outback and I have a 02 Subaru forester that im parting out. So on the off chane the motor doesn't sell I planned to rebuild it and was wondering if it would be feasible to put into the OBW. I know I will have to use my older intake/harness, and possiably the coolant passage but is there anything else that would stop me from swapping this SOHC into my outback? 

The intakes cannot swap over (Different bolt pattern etc.) unless you or someone fabs up an adapter plate - which then creates clearance issues for the hood.

 

Best bet for a 98 outback is to replace with a 1990-98 Ej22. Much more reliable motor than the DOHC EJ25s.

 

1995 was the golden year as it will be OBD2 and dual port exhaust. A 96-98 EJ22 will work with a matching single port exhaust Y pipe. 90-94s work with a 95-98 Intake manifold to go OBD2. (Sometimes an additional EGR bypass or delete if the check engine light is relevant for smog check etc. in your state.