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Old 07-17-2015, 08:19 AM   #1
import512
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Member#: 326661
Join Date: Jul 2012
Default Ej257 block with ej255 heads

I drive a 2014 wrx hatchback is it possible to have a ej257 block with the ej255 heads. Does everything just bolt up, what kind of tuning would be involved.
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Old 07-17-2015, 10:21 AM   #2
Timo1202
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Member#: 403961
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2002 Wrx
Psm

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Why would you do that? I know that the ej255 heads give a little more compression but I cant imagine that the amount of work would be worth it. Unless you grenaded something.
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Old 07-17-2015, 10:31 AM   #3
Japereira88
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Chapter/Region: Tri-State
Location: Rocky Hill, CT
Vehicle:
2012 WRX LTD Silver
Hybrid 337/337 @19psi

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Quote:
Originally Posted by Timo1202 View Post
Why would you do that? I know that the ej255 heads give a little more compression but I cant imagine that the amount of work would be worth it. Unless you grenaded something.
lol i just did this because grenade
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Old 07-17-2015, 11:20 AM   #4
import512
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I blew motor but a friend has a brand new Sti short block that he sold me for 700 bucks.
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Old 07-17-2015, 02:12 PM   #5
fan boy
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Location: north new jersey
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search is a great thing here...EJ257 vs EJ255 facts with pictures
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Old 09-08-2016, 10:08 AM   #6
AliciasWRX
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Chapter/Region: South East
Location: Olive Branch MS
Vehicle:
2008 WRX
Blue

Default 2008 WRX to STI short block

I have 2008 WRX with lower end problems requiring new crank, rods, & Pistons. I elected to opt for new OEM STI short block instead of rebuilding. Did I make a mistake? The late model STI short block was advertised to have better lower end rotating components. I assume from all other the posts I've read that 1.5 mm gaskets is only difference needed to bring CR to normal. Thanks
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