4ahickey Posted June 16, 2009 Share Posted June 16, 2009 (edited) Help,,, I'm thinking of replacing my engine in my 1998 outback AT 2.5 DOHC with an engine 2.2 EJ from a 1999 impreza Manual transmission. This is my first Subaru, GREAT CAR, a crapp engine- Piston swap and a noisy rod bearing. Despite the fact I did a full rebuilt 10 km ago. The thought of opening that engine case again almost makes me ill. I have already bought the 2.2 EJ engine and exhaust system. low miles and excellent leak down. It was a great deal. Will the intake manifold from the 2.5 EJ DOHC AT fit on the 2.2 EJ SOHC MT? The gaskets look different. Will an adapter plate work? Will 2.5 EJ DOHC heads go on the 2.2 EJ block? what would the CR be? Can I use 2.5 head gaskets? I have an extra pair... Do I need to change the ECM? What about the Power Steering lines? the Y pipe I'm okay with.. please help... Help: Engine Swap questions 2.5 EJ DOHC AT to a 2.2 EJ SOHC MT Edited June 16, 2009 by 4ahickey Quote Link to comment Share on other sites More sharing options...
Niku-Sama Posted June 17, 2009 Share Posted June 17, 2009 i dont know, only thing i know is that you missed your target. try posting or request a move to the newer subaru forum Quote Link to comment Share on other sites More sharing options...
WoodsWagon Posted June 18, 2009 Share Posted June 18, 2009 No, the 2.5 intake won't bolt onto the 2.2 heads. The wiring will most likely plug in at the 3 plugs at the bellhousing though so you don't have to worry about that. The 2.5l flexplate has to be used, it's a different depth than the 2.2l flexplate. Depending on the year of the 2.2l, it's single or dual port exhaust, but you got the y-pipe so that should be covered. The thing with having an engine from a manual trans car is that the 2.2l may not have EGR. Make sure that the rear drivers side of the intake manifold has an EGR valve and the stainless pipe coming up from the head on the 2.2. Should be plug and play. You're 2.5 l power steering lines will kinda be suspended in the air above the passenger side head, you can either make a bracket or swap the 2.2l lines and hoses onto it. Quote Link to comment Share on other sites More sharing options...
idosubaru Posted June 18, 2009 Share Posted June 18, 2009 i already replied to one of your other threads, but apparently it was deleted. Quote Link to comment Share on other sites More sharing options...
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