2.2 to 2.5 swap in "97 Legacy

[Binford]

So it looks like I'm going to acquire a '97 Leggy in exchange for some work. Only problem is it will basically need a motor and trans. The motor in it somehow has a "broken block" by the crank, I really don't know what happened! Any way, my buddy is going to pick it up and use the trans in his outback. I have a trans I can throw in there for now, and I can get a 2.5 for free also! (Apparently it "knocks" but I think it's just piston slap, idk).

So, my question is, would this be a plug and play swap? I've read that it is plug and play going the other way (swapping only the motor). Would the 2.5 run ok off the 2.2 ECU?

I am also considering putting the 2.2 heads on the 2.5 block, but if I can put this car back on the road for free that's what I want to do!

[Legacy777]

Check out this thread

http://bbs.legacycentral.org/viewtopic.php?f=5&t=15368

[MikeyMeyagi]

2.5 will be a direct swap, 2.2 ecu will run it.

[wtdash]

.... my buddy is going to pick it up and use the trans in his outback.

Remember the Outbacks diff ratio is 4.44 on the Automatics. The regular Leg is 4.11.

I am also considering putting the 2.2 heads on the 2.5 block, but if I can put this car back on the road for free that's what I want to do!

Read/been told that this will give you very low compression....??

Lots o' info on the USMB site, too.

Td

[ciper]

Which 2.5 liter engine? Depending on what you get it can be really easy or sorta easy lol

My old build thread might help http://bbs.legacycentral.org/viewtopic.php?f=25&t=42516

I am also considering putting the 2.2 heads on the 2.5 block, but if I can put this car back on the road for free that's what I want to do!

Read/been told that this will give you very low compression....??

Actually that would be the HCF (High Compression Frankenstine) as seen in this LONG thread with infinite information http://forums.nasioc.com/forums/showthread.php?t=631527

[wtdash]

Mea culpa

That 'Frankenstine' thread is very interesting....and giving me more ideas!

Thanks

[macipusy]

You will most likely need to swap headers from the single port 2.2L to the dual port 2.5L.

[Binford]

Thanks for the replies guys! You guys covered some of the other questions I had also as I haven't had a chance to compare the two cars! You guys rock!

[Binford]

Turns out it was a FWD car so it was useless to my buddy! He sold it to another buddy of mine who plans on turning it for a profit.

[rally370]

If you need any info on 2.5L block with 2.2L heads let me know. I bulid such an engine in 2006 and it's still running great. In fact I never get tired of driving the Legacy with this engine

[greg donovan]

If you need any info on 2.5L block with 2.2L heads let me know. I bulid such an engine in 2006 and it's still running great. In fact I never get tired of driving the Legacy with this engine

which phase block and head gaskets are you using? i have some ej22e dualport heads (thanks binford!) waiting for a good cheap shortblock to show up (and extra time and money too ). getting real tired of my little ej18.