XSNRG Posted November 3, 2006 Share Posted November 3, 2006 What is different and what will I need to change/modify? '99 Outback Link to comment Share on other sites More sharing options...
Commuter Posted November 3, 2006 Share Posted November 3, 2006 A bit more than you might think. I've got an email stored somewhere from several years ago of a guy that did this with a 97 GT. I'll try to dig it up. He ran into a number of issues. He did get it to work, but it was not as easy as first anticipated. The SOHC engine was a 2000, or 2001, that sort of era. Just from memory, there were issues with the throttle body area (IAC or TPS, not sure). Camshaft and/or cranshaft sensor wheels. Slight rerouting of power steering lines. He got a constant CEL over the EGR, since the SOHC doesn't have one. He was using the original ECU. You might try contacting CCR Inc. They could probably give you the low down as well. Commuter Link to comment Share on other sites More sharing options...
burtonsnowman Posted November 3, 2006 Share Posted November 3, 2006 Wait a minute... Isn't '99 a SOHC anyway? I thought that was the year they changed it. Link to comment Share on other sites More sharing options...
nickb21 Posted November 3, 2006 Share Posted November 3, 2006 Wait a minute... Isn't '99 a SOHC anyway? I thought that was the year they changed it. Only in the US Impreza/Forester Link to comment Share on other sites More sharing options...
XSNRG Posted November 4, 2006 Author Share Posted November 4, 2006 Yep that's right-I think- '99 Forester and Imp were SOHC, '99 Outback DOHC-I have a '99 Outback DOHC with a blown head gasket (I would just fix it but it is high miles and I suspect it was overheated numerous times) and can get a '99 Impreza SOHC with low miles-should I get it and swap it or keep looking? I don't want to get into anything to major or problematic. Thanks Link to comment Share on other sites More sharing options...
Commuter Posted November 4, 2006 Share Posted November 4, 2006 Yep that's right-I think- '99 Forester and Imp were SOHC, '99 Outback DOHC-I have a '99 Outback DOHC with a blown head gasket (I would just fix it but it is high miles and I suspect it was overheated numerous times) and can get a '99 Impreza SOHC with low miles-should I get it and swap it or keep looking? I don't want to get into anything to major or problematic.Thanks Correct. The Japan made Impreza platform (includes Forester) got the SOHC engine in 99. The US made Legacy platform (includes OB) got the SOHC engine in 2000. I think you could just use the block from the SOHC engine and use everything else from your old engine and you'd be good to go. However, I'm not 100% sure on this. Verify this with someone that knows for sure. You'd probably find more about this on the nasioc site than here. Commuter Link to comment Share on other sites More sharing options...
99obw Posted November 4, 2006 Share Posted November 4, 2006 I think it's much easier to fix the Phase I, which really isn't too bad with a good set of gaskets in it. I did the EJ22 swap in a friends car and I don't think I'd do it again, I'd fix the PH I EJ25 instead. I don't think we saved any money and he ended up with less power. The early Phase II's were fairly problematic as well, though the HG failures were less severe, replacing the gaskets on the donor engine would be prudent. I think if the Phase I in question is in reasonable condition that that's the way to go. Link to comment Share on other sites More sharing options...
ShawnW Posted November 4, 2006 Share Posted November 4, 2006 The intake gasket surface isnt compatible, the wiring is different, etc. Link to comment Share on other sites More sharing options...
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