EJ25 head size

Tullio · 08-31-2006, 12:13 PM

Can anybody tell me if the physical size of a head on a EJ25 from a 99 Legacy is the same physical size of a head from a 2.5L STi?

I bought a blown EJ25 from a Legacy with heads and I am using it to mock up a chassis that will eventually get a built STi motor. I just want to make sure that if we make enough clearance for the heads I have on the blown block, that is will be enough room for the new engine with the new heads.

Any thoughts?

Thanks for your input.

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Matt Monson · 08-31-2006, 12:35 PM

Same size...

08-31-2006, 12:13 PM	#1
Tullio Scooby Newbie Member#: 121129 Join Date: Jul 2006 Location: Simi Valley, CA	EJ25 head size Can anybody tell me if the physical size of a head on a EJ25 from a 99 Legacy is the same physical size of a head from a 2.5L STi? I bought a blown EJ25 from a Legacy with heads and I am using it to mock up a chassis that will eventually get a built STi motor. I just want to make sure that if we make enough clearance for the heads I have on the blown block, that is will be enough room for the new engine with the new heads. Any thoughts? Thanks for your input. * Registered users of the site do not see these ads.

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08-31-2006, 12:35 PM	#2
Matt Monson Scooby Guru Member#: 832 Join Date: Jan 2000 Chapter/Region: RMIC Location: Teh Ghetto Garage, CO Vehicle: 99 2.5RS, '85 911 '73 914 and 2012 BRZ	Same size...