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Old 03-11-2011, 11:25 AM   #1
grossgary
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Member#: 88368
Join Date: Jun 2005
Location: morgantown, WV
Vehicle:
1989 XT6

Default What are EJ25 head cc's?

Cometic says they can help me if I figure out the cc's of:
EJ25D heads (DOHC).
and 2000 Forester SOHC EJ25 heads.

I want to use an EJ25D block in a 2000 forester but the EJ25D pistons stick out above the deck. Cometic offers their thickest headgasket at 140 thousands, or 3.5mm and I'm wondering if that's enough to allow the SOHC heads to bolt to the EJ25D block.
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Old 03-12-2011, 06:26 PM   #2
Storm
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Member#: 5218
Join Date: Mar 2001
Chapter/Region: MWSOC
Location: SAUL'S Motorsports
Vehicle:
96L Most Over-
Developed Beater

Default

The pistons only clear the deck by .015-.018". A standard .040" thick gasket is fully suitable for the application.

PS: Is this EJ25D block already in your possession? If so, measure it ya jackwagon....

Jay
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Old 03-12-2011, 08:09 PM   #3
grossgary
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Join Date: Jun 2005
Location: morgantown, WV
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1989 XT6

Default

great, thanks for your time Jay. didn't want to waste time or tear down a motor if someone already knows. i frequent/moderate two other subaru forums and while I experiment and figure things out (who else converts an EJ25 to FWD auto and EJ18? is there a yawn smiley? ) I realize most things are already known. motor came out today and sits next to the "new" EJ25D.
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