99 legacy 30th edition. Sedan. 2.2 sohc.
the above info is true and correct,
but NOT for this engine / car.
you have a phase 2 engine.
it is compatible with the 00 - 04 ej25.
you could still do the hybrid build with the 00 - 04 block,
no problem no wiring issues.
if you swap in a ej25 sohc engine, 00 - 04 (plus the 99 forester),
the best solution is to use the intake manifold, driver side cam sprocket, and crank sprocket from your ej22.
this guarantees the computer sees what it needs to run.
i would stick to the 00 - 01 ej25, it is a closer match, fewer headaches.
the 00 - 04 ej25 dose have head gasket problem,
but not as bad as the 96 - 99.
and instead of an interanl leak, it has an external leak,
coolant leaks out of the engine at the gasket.
several things to know.
there is a ''coolant conditioner'' from subaru that helps prevent this.
it may infact reseal a gasket, postponing the repair.
the coolant leak is very slow at first, and as long as you keep it topped of you can keep driving it.
it only over heats when the level gets low. DUH!!!
if swapping in an 00 - 04 ej25 i would replace the head gasket unless you are SURE it has been done.
and the coolant conditioner is a must.