desertsubaru Posted May 20, 2015 Share Posted May 20, 2015 Someone gave me a 2003 forester x with a great body but the engine knocks and needs a HG. I have a 92 2.2 with only 90k on it sitting in my shed that came out of a wrecked legacy. Is it possible to put the 92 2.2 into the 2003 forester? I know it would be a lot less power but then at least I would have a good running car if it is possible to do the swap. Link to comment Share on other sites More sharing options...
AdventureSubaru Posted May 20, 2015 Share Posted May 20, 2015 That version of the 2.2 is not compatible as a whole motor. The short block is. You could take the heads off the forester motor and with fresh head gaskets, bolt them to the 2.2 short block for a "frankenmotor" do a search with that keyword and you'll get plenty of info for all the ins and outs of it. Otherwise you are looking for any late 99 single ovehead cam EJ25s and any ej25 or Ej22 from the years 2000-2003 (And probably 04 as well) Legacy, Impreza, forester and outback - all the same motor and compatible with yours. Keep the crank and drivers side cam sprockets from the old motor as these may need to be swapped onto the new one to match the engine computer and run. Link to comment Share on other sites More sharing options...
desertsubaru Posted May 21, 2015 Author Share Posted May 21, 2015 What changed on the 2.2 in 2000 that wouldn't make it compatible with a 1999 2.2? Link to comment Share on other sites More sharing options...
Fairtax4me Posted May 21, 2015 Share Posted May 21, 2015 99 Impreza 2.2 should work. Pre98 is no go. Electronics on the manifold changed and can't be swapped. Link to comment Share on other sites More sharing options...
desertsubaru Posted May 21, 2015 Author Share Posted May 21, 2015 What about the exhaust manifold, Is the 1999 a duel port like the 2003? I can get a 2.2 from an Impreza with 136k and six month warranty cheap. Link to comment Share on other sites More sharing options...
Fairtax4me Posted May 21, 2015 Share Posted May 21, 2015 I think all 2.2s are single port after 96. Y-pipes usually swap pretty easy though. I guess that depends on where the first cat is on your 03. If it's back by the trans you can swap y-pipes. If the cat is up front with the wraparound thing by the oil filter (the dragons den), then you can still do it but you'll need to swap the whole cat pipe section all the way back to the spring-bolt joint. Link to comment Share on other sites More sharing options...
Fairtax4me Posted May 21, 2015 Share Posted May 21, 2015 (edited) Dubble post Edited May 21, 2015 by Fairtax4me Link to comment Share on other sites More sharing options...
desertsubaru Posted May 21, 2015 Author Share Posted May 21, 2015 The first cat on the Forester is near the trans under the cv boot on right side. Link to comment Share on other sites More sharing options...
idosubaru Posted May 21, 2015 Share Posted May 21, 2015 (edited) All 1999-2001 EJ22's are interchangeable Phase II. They all have single port exhaust. You can also swap the 03 forester heads onto the 99 EJ22 block then you'll have double port exhaust and can just use that exhaust and intake manifold in the forester. so you're just swapping the short block. Phase II EJ22 and EJ25 99-04 heads are essentially identical minus the exhaust ports - the valve part numbers on Ej25 and EJ22 Phase II's are even the same. Edited May 21, 2015 by grossgary Link to comment Share on other sites More sharing options...
desertsubaru Posted May 21, 2015 Author Share Posted May 21, 2015 Thanks everyone . Just looked at the Imp at the JY. Started right up and drove it around the yard hard to make sure of no overheating and such. Car was hit in the rear so that's always a plus. Exhaust from y pipe back is the same as the Forester. Made a good deal with the owner for engine and y pipe for $400 plus my old engine from the forester. Going to pick it up next week. One more question, Do I have to change intakes or is it plug and play? Link to comment Share on other sites More sharing options...
AdventureSubaru Posted May 21, 2015 Share Posted May 21, 2015 Should be plug and play. I'm not sure if the wiring was a little different for the Impreza - mass air flow vs. MAP sensors and such. But I believe the manifold itself is the same. Sounds like you got a great deal! Link to comment Share on other sites More sharing options...
desertsubaru Posted June 3, 2015 Author Share Posted June 3, 2015 I got the 2.2 today and have a question. The 2.2 has two long studs on the bottom of the bell housing that go in to the trans but the forester had all bolts no studs. Should I take the studs out of the 2.2 and just use the bolts from the forester 2.5 or can I just leave the studs in the 2.2 to mount it to the trans? Link to comment Share on other sites More sharing options...
Fairtax4me Posted June 3, 2015 Share Posted June 3, 2015 Leave the studs. It's supposed to have those anyway. Probably someone removed them and lost them on the forester engine. Just gotta find some nuts and washers for them. Link to comment Share on other sites More sharing options...
desertsubaru Posted June 3, 2015 Author Share Posted June 3, 2015 (edited) Leave the studs. It's supposed to have those anyway. Probably someone removed them and lost them on the forester engine. Just gotta find some nuts and washers for them. The trans was replaced recently but the bolts in the bottom lock stock. Any idea what the threads on the studs are? Edited June 3, 2015 by desertsubaru Link to comment Share on other sites More sharing options...
desertsubaru Posted June 10, 2015 Author Share Posted June 10, 2015 Well got the engine back in after discovering the flex plate on the 2.2 is smaller then the 2.5. Had to hoist the engine back up and change them. So anyone doing a 2.5 to 2.2 swap make sure you change the flex plate. Link to comment Share on other sites More sharing options...
AdventureSubaru Posted June 10, 2015 Share Posted June 10, 2015 Learned that the hard way myself. It's mentioned in a number of threads but not often enough. Flywheels are the same but the flex plates and torque converters differ. Link to comment Share on other sites More sharing options...
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