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Old 09-12-2005, 09:07 PM   #1
hotshot2109
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Member#: 94785
Join Date: Aug 2005
Location: Turboville NY
Vehicle:
04 WRX STi
WRB

Default Would RS DOHC ej25 heads make a good hybrid with an EJ20H tt block??

just wondering what you might think of ej25 heads mated to a jdm ej20H tt block. i think it would yeild 8.2:1 compressions and have oil squirters. Im thinking this would be nice for my 98 L awd instead of swapping my whole ej22t.
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Old 09-13-2005, 06:19 PM   #2
Matt Monson
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Join Date: Jan 2000
Chapter/Region: RMIC
Location: Teh Ghetto Garage, CO
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99 2.5RS, '85 911
'73 914 and 2012 BRZ

Default

Help me out here. What is currently in your car? If you have an Ej22T bottom end, use it. Or are you keeping that in the '94? I am a little confused. And do you have the Ej20H heads as well, or just the bottom end?

An Ej20h bottom end with Ej25 DOHC heads would be a good combination. I am not sure about that CR number. Did you do the math? Or is that a guess?

Also, I have a set of DOHC EJ25 core heads if you are looking for a cheap set to use to build on...
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Old 09-26-2005, 11:42 PM   #3
hotshot2109
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my 94 impreza has a jdm ej20/ej22t (fully built hybrid) Im putting together another motor for my 98 impreza daily driver. An im looking to use ej25 dohc heads on my jdm ej20H block. tell me more about yout ej25 dohc heads, i have a friend looking for a pair for his 95 legacy
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