torxxx Posted June 26, 2007 Share Posted June 26, 2007 Ok at work I have a 2002 Legacy Outback Sedan with a SOHC EJ25 with a bad rod knock. I have a 1996 EJ22 sitting on the floor that has like 50k miles on it. I found out today that they arent swappable because the 02 intake is about a half inch wider. My boss is trying to tell me that I can use the EJ25 heads and put it on the EJ22 shortblock. That way we can use the 02 intake manifold. For some reason this doesnt some do-able to me. EJ25 is a slightly wider bore isnt it? He's claiming that he talked to some other subaru mechanic that had done the swap before from 99 to an 01. but the engines being 6 years apart and the outer parts on the engine being different I dont see it happening. I dont have a spec book close to me and I'm used to the older engines so I'm figuring the 2.5 has a bigger bore than the 2.2 not a longer stroke. What do you guys think? All in all, we want the 02 running again and the cheapest EJ25 I can find is for 1600 bucks out of a wreck and the timing gears are busted Link to comment Share on other sites More sharing options...
Legacy777 Posted June 26, 2007 Share Posted June 26, 2007 I can't say for sure off the top of my head....I'm pretty they'd be swapable. Matt Monson, who is a member on nasioc and the legacycentral bbs would probably know for sure. I would suggest trying to post on the legacycentral bbs or PM him. Link to comment Share on other sites More sharing options...
86BRATMAN Posted June 26, 2007 Share Posted June 26, 2007 They are swappable, but you're gonna drop your compression ratio throught the floor... http://wac.addr.com/auto/obs/turbo/ejcalcs.html You'd also be best off buying the head gaskets from cometic, they've got them made for putting 2.5 heads on a 2.2 block Link to comment Share on other sites More sharing options...
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now