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Old 01-03-2021, 11:19 AM   #1
devilmademedoit
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Member#: 289267
Join Date: Jul 2011
Chapter/Region: Tri-State
Location: North Jersey
Vehicle:
03 wrx
wrb

Default Using an ej257 long block in 06 Wrx

Hey guys Iím not sure if this is in the right category but I figured you d try here before the built engine thread. Iím getting a good deal on a ej257 long block and intake manifold out of an 04 STI. I Have an 06 Wrx. While my car runs great and tuned very conservative, I do have 155k on the bottom end. Will I run into any issues rebuilding the 257 and swapping that into my car when the time comes? I donít know much about the acvs on the STI heads but from what research Iíve found, I wonít be able to use that so what do I have to do to eliminate? Here is what I currently have in the car that I will still use for the time being
VF 48
Grimmspeed top mount
1050cc injectors
255lph fuel pump
Grimmspeed EBCS
Perrin equal lengths
TGV deletes
Up/down pipe
Catback
Air pump delete
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Old 01-03-2021, 01:47 PM   #2
snow_bound26
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Member#: 395793
Join Date: Jul 2014
Chapter/Region: Tri-State
Location: SLC and Lake Placid
Vehicle:
2005 92x Aero
Beige

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It's going from an EJ255 w/intake AVCS to an EJ257 w/intake AVCS. There shouldn't be any issues other than tuning. So this question should be directed toward your tuner to see is the AVCS has any differences like cam position sensors for instance.
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Old 01-03-2021, 10:04 PM   #3
devilmademedoit
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Ok I figured on the new tune. I was unsure if there were any other isssues I may run into
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Old 01-04-2021, 12:01 AM   #4
Haevn
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Location: Augusta, GA
Vehicle:
2011 WRX
WRB

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what year is the long block from? is it dual avcs? if so what i did was tap the exhaust oil holes on the exhaust cams and put set screws in with jb weld and used my exhaust cam gears from my 2011 wrx motor

https://drive.google.com/drive/folde...tJ?usp=sharing
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Old 01-04-2021, 05:41 AM   #5
devilmademedoit
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Itís from an 04 STI. I do t have the block in my possession yet as Iím picking it up this week
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Old 01-04-2021, 07:31 AM   #6
Haevn
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WRB

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If itís single avcs then you shouldnít have any problems
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