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Old 05-11-2011, 07:54 PM   #1
ToyotaGuy
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Default I need to replace an EJ25 shortblock....

...in my 2000 Legacy L 5speed. The block itself is cracked and there is rod knock, so a rebuild is out of the question. What cars have a block I can use? How does SOHC or DOHC affect me here, and newb question, which do I have? Also, what would happen if I used a 2.2(t)L block with my 2.5L heads and such?
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Old 05-12-2011, 10:22 AM   #2
Patrick Olsen
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You have a SOHC "Phase II" EJ25. Any '99-05 SOHC shortblock will work.

Pat Olsen
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Old 05-12-2011, 12:17 PM   #3
GEE-OTTO
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Quote:
Originally Posted by Patrick Olsen View Post
You have a SOHC "Phase II" EJ25. Any '99-05 SOHC shortblock will work.

Pat Olsen
Yeah what Pat said And you can find EJ251 engines laying around on RS25.com
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Old 05-12-2011, 12:44 PM   #4
JoshP
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You can use the DOHC shortblock with matching gasket, lower compression and you have to swap some stuff. I dont really care for it because things dont fit very well, but it works anyway.
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Old 05-12-2011, 04:20 PM   #5
ToyotaGuy
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Well I lucked out because my friend replaced the motor in is Forrester due to hg issues, so I now have a good block to swap into mine with 110K miles. Other than the idea of a rebuild which I cant afford anyway, what else should I do prior to installation with new gaskets and such? I plan to have new hg, valve cover, and t-belt. Anything else I should do?
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Old 05-12-2011, 04:26 PM   #6
DarkPhoenix
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Originally Posted by ToyotaGuy View Post
Well I lucked out because my friend replaced the motor in is Forrester due to hg issues, so I now have a good block to swap into mine with 110K miles. Other than the idea of a rebuild which I cant afford anyway, what else should I do prior to installation with new gaskets and such? I plan to have new hg, valve cover, and t-belt. Anything else I should do?
I would do the seals as well. Front and rear mains, and cam seals. Preemptive strike against the Subaru oil leaks.
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Old 05-12-2011, 05:10 PM   #7
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I like the idea of no oil leaks. It just makes sense to do this stuff with the motor out and pulled apart.
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Old 05-12-2011, 06:10 PM   #8
Sir-Knight
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do the valve cover gaskets and spark plug boots too while you have easy access?
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Old 05-12-2011, 08:32 PM   #9
ballitch
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Now is also the time to think about upgrades. As previously mentioned, the HG matches the block, you can use the EJ25D if you want, just make sure to use the EJ25D gasket(since the EJ25D pistons pop out of the cylinder). Make sure that the block your friend has is good, and un-warped. A quick check from a machine shop is easier in the long run than doing the HG's again.

If you want to boost this motor later on, the EJ22E is the easiest and cheapest way to lower your compression ratio, the EJ22T brings the CR way too low, IMO. Actually, i'm wrong, sorry. If you get the SOHC block, you can swap in STI rods and pistons, which would be about the same price, but you would end up with 2.5L instead of 2.2L, bigger is better....



that's what she said.



~Josh~
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Old 05-14-2011, 12:04 PM   #10
Sockington
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Outfront Motorsports sells shortblocks for under $1k.
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Old 05-16-2011, 04:34 PM   #11
DarkPhoenix
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Outfront Motorsports sells shortblocks for under $1k.

Just basic rebuilds for about $800, using your shortblock. To purchase one outright is about $3500.
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