steve56 Posted August 26, 2015 Share Posted August 26, 2015 Have 1999 OBW automatic with with ej25d with broken timing belt. Going to put in ej22 phase 2 from automatic. Anyone do that swap. Things I've noticed so far are: Need single port exhaust yr pipe. Looks like I need to use ej25d intake manifold, because the wiring harness is different on ej22 phase 2. I dont see an egr pipe coming out of head an ej22 phase2. Quote Link to comment Share on other sites More sharing options...
wtdash Posted August 26, 2015 Share Posted August 26, 2015 (edited) Hi You can't do this. Good luckOk. More info:- as noted on here in multiple posts you'll find that that will not work because it's too different. Wiring, intakes are not interchangeable, and other "gotchas".- 99 2.5 is still phase 1 wiring and heads (short block is phase 2) Edited August 26, 2015 by wtdash 1 Quote Link to comment Share on other sites More sharing options...
steve56 Posted August 26, 2015 Author Share Posted August 26, 2015 (edited) Yes it looked a little "too' different. Guess I will take a look at the ej25d and see how many valves got bent. The head gaskets were done 30K miles ago. Maybe able to redo ej25d. I've also done several 95 to 98 ej22 phase one into ej25d. Might do that again. This car is a GT and was hoping the ej22 phase 2 would work. The ej22 phase one would be a little under powered for a GT Edited August 26, 2015 by steve56 Quote Link to comment Share on other sites More sharing options...
987687 Posted August 27, 2015 Share Posted August 27, 2015 There is barely any power difference between the phase1 and phase2 ej22. Just drop a phase1 in there and call it a day. Or just get new heads and put them on your 2.5. It's pretty rare a belt breaking on these causes more than just valve damage. Quote Link to comment Share on other sites More sharing options...
idosubaru Posted August 27, 2015 Share Posted August 27, 2015 As said there's issues with that swap. I wouldn't do it. Quote Link to comment Share on other sites More sharing options...
AdventureSubaru Posted August 27, 2015 Share Posted August 27, 2015 Do a search on here for frankenmotor for more options. Phase 1 ej22 heads on your block make a high compression motor with SOHC heads. Or just source a good phase 1 EJ22 and go with the bullet proof reliability they bring. Especially on an Impreza, the power of the ej22 is plenty. Quote Link to comment Share on other sites More sharing options...
steve56 Posted August 27, 2015 Author Share Posted August 27, 2015 Id be really interested in putting ej22 phase one heads on this ej25d. That sounds like a good use for the troublesome ej25ds that I've had over the years. Is there a comprehensive discussion thread on this topic that you know of? Quote Link to comment Share on other sites More sharing options...
idosubaru Posted August 27, 2015 Share Posted August 27, 2015 Id be really interested in putting ej22 phase one heads on this ej25d. That sounds like a good use for the troublesome ej25ds that I've had over the years. Is there a comprehensive discussion thread on this topic that you know of? http://www.ultimatesubaru.org/forum/topic/153118-ej22-or-ej18-swap-into-ej25d-dohc-vehicle/ it's really easy - you'll just bolt Ej22 heads onto an EJ25 block. done. when reading that write up - rather than swap engines - you'll simply bolt EJ22 heads onto an EJ25 block. then follow all the details in that thread. use EJ22 intake manifold and single port exhaust if using 96 and up heads. Quote Link to comment Share on other sites More sharing options...
AdventureSubaru Posted August 27, 2015 Share Posted August 27, 2015 there's a hybrid gasket made by cometic. part# H1631SPK040S or you can modify regular ones. Haven't done this personally but it's same thing as head gasket job for a SOHC Quote Link to comment Share on other sites More sharing options...
steve56 Posted August 27, 2015 Author Share Posted August 27, 2015 Thanks for the link and tips on the ej22 heads on ej25d block Quote Link to comment Share on other sites More sharing options...
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