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Old 07-24-2003, 11:31 AM   #1
Forsa
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Default Engine Builders: head cc's and deck height

Any help from you engine builders out there would be appeciated.

Doing the final math on my EJ25 build and need:

- the Deck Height for the EJ motor

- the cc volume of the stock WRX heads

Also, if you have put WRX heads on an EJ25 short block, what head gasket did you end up going with (ie. which model engine/head)?

Thanks guys for helping out. This forum is excellent!

Fin
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Old 07-25-2003, 12:03 PM   #2
latinskllz
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You would need to use the EJ25 head gasket to accomodate the larger bore size of the EJ25....
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Old 07-30-2003, 01:13 PM   #3
Forsa
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Default Help

With all these Subaru Guru's here and no one knows this information?

Please help me out if you know the above, I really need this to conclude my project.

Fin
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Old 07-30-2003, 01:27 PM   #4
8Complex

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My calipers only go up to 6", otherwise I'd be able to measure the deck height for you. It's at least 9", though.
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Old 07-30-2003, 01:38 PM   #5
Forsa
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Default Got it!

Great news, the guys at JE Pistons are rock stars! Thanks to them we have the information. In an effort to share here it is:

02-03' WRX engines:
CC's of heads = 48cc
Deck height = 7.913" (201mm)

Thanks guys and hope this helps other engine builders.

Fin
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Old 07-30-2003, 02:01 PM   #6
8Complex

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Interesting... I wonder why they picked 402mm as the width for all the EJ-series motors.
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Old 07-31-2003, 01:55 AM   #7
markus
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Anyone have the same info on the N/A EJ25 motors?
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Old 07-31-2003, 02:40 AM   #8
8Complex

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The deck height will be the same, the head volume depends on which head.
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