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Old 05-05-2003, 08:54 AM   #1
trojan9x
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Default DOHC heads on 99+ EJ25?

Has anyone done it?

Would it be a legal UD/BD in ST class?

Reason I'm asking is because I've heard that the DOHC heads flow bettern than the SOHC heads.
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Old 05-05-2003, 09:47 AM   #2
trojan9x
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maybe this could be moved to the Normally Aspirated forum
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Old 05-06-2003, 09:49 AM   #3
trojan9x
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nothing at all?
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Old 05-06-2003, 09:30 PM   #4
ScoobyShak
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Uh.
Who would have told you this?


J/k. I too would like a deffinate answer. Or should I put it more conformation as for I was told this is true. Also for the up/bd thingy.

Dan
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Old 05-09-2003, 10:53 AM   #5
trojan9x
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nothing?
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Old 05-09-2003, 01:50 PM   #6
98imp
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Teagues Auto

This guy would know if anyone.
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Old 05-09-2003, 02:00 PM   #7
trojan9x
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e-mailed them, hopefully will here back soon
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Old 05-12-2003, 10:54 AM   #8
trojan9x
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response from teagues auto

Quote:
Originally e-mailed by Dale Teague (Teague's Auto)

It would be better to port and polish the single overhead cam heads. It would give better results in the long run. You can also do cams with the single overhead cam motor. It is a lot less expensive to do the cams on the single than the dual. The results you would get with the dual are not worth the labor it would take to swap them.
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Old 05-12-2003, 07:08 PM   #9
DanThom
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My wife's '98 Legacy GT got a new shortblock at 18,000 miles and it ended up being the GenII block. Net effect? Nothing. The car ran like it did before.

I'm sure that a balls-out buildup of the motor might have yielded higher output than the SOHC GenII motor with better longevity than the GenI block, but for an otherwise stock car it made no difference.
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