sti shortblock on a sohc head? say wahhh!?

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Old Aug 7, 2011 | 04:53 PM
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sti shortblock on a sohc head? say wahhh!?

so ive been reading around and ive heard that you can take a shortblock of an sti and put it on the sohc head of the 2.5i (the 06). everything apperently bolts right up, soo now im interested and was wondering where i can find a shortblock or will it really work. anyone have any ideas? cause eventually a turbo kit will come into play if that happens...low end tourqe + turbo= rallyx ftw!
Old Aug 7, 2011 | 05:08 PM
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Originally Posted by Not/Available
so ive been reading around and ive heard that you can take a shortblock of an sti and put it on the sohc head of the 2.5i (the 06). everything apperently bolts right up, soo now im interested and was wondering where i can find a shortblock or will it really work. anyone have any ideas? cause eventually a turbo kit will come into play if that happens...low end tourqe + turbo= rallyx ftw!
can....a certain scooby doo character has been planning it for years now

he knows who he is
Old Aug 7, 2011 | 05:18 PM
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Originally Posted by 4080wrx
can....a certain scooby doo character has been planning it for years now

he knows who he is
no idea what your talking about!

yes it will "sorta" bolt up. you will need to weld the coolant line on the top on the block for this to fit right. you are also better off building the heads a little to bring up the flow rate. also the SOHC heads flow good! but the RPM range sucks!

Someone still has "my" motor in his car since he has his "nice toy" waiting on the side!! and he knows who he is also!
Old Aug 7, 2011 | 05:37 PM
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so even my 06 is gonna need that weld on line. or is there even a difference
Old Aug 7, 2011 | 05:55 PM
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yes b/c that part is for the turbo cars
Old Aug 7, 2011 | 06:06 PM
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dang, sounds a little difficult... anyone know if a shortblock i could buy lol.
Old Aug 7, 2011 | 06:58 PM
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Originally Posted by shaggadelic
no idea what your talking about!

Someone still has "my" motor in his car since he has his "nice toy" waiting on the side!! and he knows who he is also!
you just proved my point and you said I am the noob
Old Aug 7, 2011 | 07:03 PM
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honestly for the price you are paying to get the block and then a turbo kit on top. you are better off looking for a EJ255 or EJ257 motor to drop in (granted you want the extra 1/2 liter displacement). unless of course you are just hell bent on boosting a SOHC, which is ok if your name is Shaggy.

Last edited by 4080wrx; Aug 7, 2011 at 07:15 PM.
Old Aug 7, 2011 | 08:03 PM
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of course i was looking for that option but i would have to get a new tranny wouldnt i?
which ever crosses the road first ill take it
Old Aug 7, 2011 | 11:04 PM
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if someone has a STI Block on the side...Let me know!!!
Old Aug 7, 2011 | 11:40 PM
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Originally Posted by Not/Available
of course i was looking for that option but i would have to get a new tranny wouldnt i?
which ever crosses the road first ill take it
You can get a new STi shortblock for around $2k shipped to Hawaii. Hopefully you are coming to the next RallyX, I should have mine all broken in by then.
Old Aug 8, 2011 | 06:35 PM
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Originally Posted by Z Madness
You can get a new STi shortblock for around $2k shipped to Hawaii. Hopefully you are coming to the next RallyX, I should have mine all broken in by then.
Hope it just gets broken in and not broken.
Old Aug 12, 2011 | 09:47 PM
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YouTube - Broadcast Yourself.
i'm really likeing the n/a idea haha
Old Aug 12, 2011 | 11:37 PM
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Originally Posted by Not/Available
YouTube - Broadcast Yourself.
i'm really likeing the n/a idea haha
I'll be at the meet tonight if u wanna ride in a n/a turbo'd car. Just ask me.
Old Aug 13, 2011 | 12:18 AM
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Originally Posted by 4080wrx
honestly for the price you are paying to get the block and then a turbo kit on top. you are better off looking for a EJ255 or EJ257 motor to drop in (granted you want the extra 1/2 liter displacement). unless of course you are just hell bent on boosting a SOHC, which is ok if your name is Shaggy.
Its not as simple as that unfortunatly, you cannot go from sohc to dohc, the pcm has a s**t Fit. Trust me, ive already looked into this for my car. So if he were to get the ej255 or ej257 block, he'd need a stand alone, unless he knows someone who can reflash that to make it work, i've heard nothing about people who can do that, just my knowledge on it.

My car is a bit different because i dont have avcls, if i recall correctly the newer 2.5 i does, but i still cant see going from single to dual with factory pcm.



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