Hey guys I wanted to do a little reading about the 207 vs the 257 engines... however I cannot find much information. Does anyone know a good website that will give you a detailed breakdown about the differences between these two engines? Also do either of these engines come stock in any subaru cars?

Do a search under EJ207 and EJ257, hundreds of threads discussing them.

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Are you for real ?

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I am only an asshole on the internet :)

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who will stand up for the humble 205!!

mine coped 1.6+bar for a long long time, only let down by a blown headgasket

hahaha.

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If you have a flame suit handy, put it on now. All the info you could ever imagine re: the engine variants is on the forum.
207 = 2L
257 = 2.5L

The "7" denotes that it's the sti variant of the respective motor. ie. as opposed to the 205 and 255's found in wrx's.

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Signarape!

EJ255 and EJ257 have same bottom end btw, just different heads. EJ205 and EJ207 are NOT same bottom end.

EJ 205 - WRX 2L
EJ 207 - STI 2L
EJ 255 - WRX 2.5L
EJ 257 - STI 2.5L

according to your avatar, you have an 06/07 STI, so your car already has a 2.5L EJ257.

you'll also find info on the "open deck" or "semi closed" etc, here is what they are referring to, the amount of support for the bore in the block.

open deck

semi closed deck

closed deck

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MY93 Impreza GX 1.8L, 0hp, 0nm

Actually some JDM early model STi's had 205's

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RS RA
The more people I meet the more I like my Dog!

12.463 1/4 mile, not bad for an old school Liberty [DECEASED]

MY08 Liberty Tuned by STi

absolutely not...ej16 is what you have, not bad but have a think about upgrading it to rb30...subaru engine made famous by Micheal Schumacher, most of us are on these

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Member of the 18-35 club and proud of it! (For another 5 years...getting old)

New toy has arrived, 1/4 mile in 11.2 sec and only 114hp!