Ver 7 Head Gasket thickness

DuoMaxwell · 09-13-2004, 09:57 PM

Ok this past week has been hell trying to finish out my Ver 7 swap into my 94 STi. While doing some research and thinking about different upgrade paths that may come I decided to swap out my stock head gaskets with some Power Enterprise ones. Curiously I measured the thickness of the stock ones with a micrometer. To my suprise the 1.2~1.4 that most of my books state was far off as the micrometer measured them at 1.0 even. Do any of you think this could be because they are used or does Subaru really only use 1.0mm thick ones for stock and how thick can I go if I am upgrading the turbo without being detrimental to the engine??

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ImprezaRSfan! · 09-13-2004, 10:01 PM

ill tell u if u find me a catless twinscroll downpipe, lol just kidding

bump

uberbrighton · 09-13-2004, 10:19 PM

A stock head gasket is "crushed" upon instalation. That is why your used one is thinner, also, that is why it is not re-usable.

DuoMaxwell · 09-15-2004, 03:33 AM

Thats what I was thinking uber but I did have a set of 2.1mm but decided to sell them and go with 1.6mm for now. I am curious at what thickness would it hurt more than help.

uberbrighton · 09-15-2004, 06:55 AM

I guess it would depend on what CR you were looking for, and what your valve clearance has to be? I'm new to the turbo scene, as I don't even have one yet, but I've done a fair bit of n/a non-subaru engine work.

09-13-2004, 09:57 PM	#1
DuoMaxwell Scooby Specialist Member#: 24565 Join Date: Sep 2002 Location: Misawa Japan Vehicle: 2000 V6 STi RA #856 Blue	Ver 7 Head Gasket thickness Ok this past week has been hell trying to finish out my Ver 7 swap into my 94 STi. While doing some research and thinking about different upgrade paths that may come I decided to swap out my stock head gaskets with some Power Enterprise ones. Curiously I measured the thickness of the stock ones with a micrometer. To my suprise the 1.2~1.4 that most of my books state was far off as the micrometer measured them at 1.0 even. Do any of you think this could be because they are used or does Subaru really only use 1.0mm thick ones for stock and how thick can I go if I am upgrading the turbo without being detrimental to the engine?? * Registered users of the site do not see these ads.

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09-13-2004, 10:01 PM	#2
ImprezaRSfan! Scooby Specialist Member#: 13520 Join Date: Dec 2001 Chapter/Region: MAIC Location: Springfield, VA Vehicle: 99rs ej207 spec-c its for sale	ill tell u if u find me a catless twinscroll downpipe, lol just kidding bump

09-13-2004, 10:19 PM	#3
uberbrighton Scooby Newbie Member#: 56676 Join Date: Mar 2004 Location: wv-usa Vehicle: 1996 Impreza "Brighton" Hunter Green	A stock head gasket is "crushed" upon instalation. That is why your used one is thinner, also, that is why it is not re-usable.

09-15-2004, 03:33 AM	#4
DuoMaxwell Scooby Specialist Member#: 24565 Join Date: Sep 2002 Location: Misawa Japan Vehicle: 2000 V6 STi RA #856 Blue	Thats what I was thinking uber but I did have a set of 2.1mm but decided to sell them and go with 1.6mm for now. I am curious at what thickness would it hurt more than help.

09-15-2004, 06:55 AM	#5
uberbrighton Scooby Newbie Member#: 56676 Join Date: Mar 2004 Location: wv-usa Vehicle: 1996 Impreza "Brighton" Hunter Green	I guess it would depend on what CR you were looking for, and what your valve clearance has to be? I'm new to the turbo scene, as I don't even have one yet, but I've done a fair bit of n/a non-subaru engine work.