2011-12-30, 06:48 PM | #1 |
EJ22
Real Name: Sean Join Date: Sep 2003
Location: Ammon,ID
Posts: 182
Car: 2003 subi 25rs turbo
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2.5l head gasket options
when its time to replace the head gaskets in the 2.5 non turbo cars.. are you guys using the stock head gaskets? Is there a better option that has a less chance of leaks, or is oem best. Especially for a turbo rs like mine. gonna just pull the motor and do head gaskets and clutch at the same time.
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the beauty of RS-T |
2011-12-31, 05:32 PM | #2 |
EJ22
Join Date: Jun 2010
Location: 220 Coney Island Drive in Sparks, NV
Posts: 104
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The OEM are good and the best choice for a non-turbo. Cometic makes head gaskets in different thickness so you have the option of dropping compression a little.
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KSpeed Automotive 220 Coney Island Dr. Sparks, NV 89431 775-284-1011 kspeedauto@gmail.com Check us out on Yelp. |
2011-12-31, 06:13 PM | #3 |
EJ22T
Join Date: Sep 2003
Location: Reno
Posts: 9,445
Car: '93/'01 GF6, mostly red
Class: 19 FP
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The consensus seems to be that either the newest revision of the NA HG, or the STi (EJ257) gaskets are pretty reliable. They're about the same price too. I went with the NA gaskets for the wagon build but kinda wonder if I should have gone with STi. Call your dealer and verify that the p[art number you order is the revised one, last I check there are still two part numbers available for SOHC.
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2012-01-14, 09:16 PM | #4 |
EJ22
Real Name: Sean Join Date: Sep 2003
Location: Ammon,ID
Posts: 182
Car: 2003 subi 25rs turbo
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had the motor out anyway to do the clutch too, so just got the whole engine re-seal kit. It did come with the updated head gaskets. I also powder coated the intake red since i had everything apart. It turned out pretty good. Finished everything up and drove it home today.
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the beauty of RS-T |
2012-01-15, 12:15 AM | #5 | |
Candy Mountain
Real Name: Cody Join Date: May 2005
Location: Californication
Posts: 7,751
Car: 03 Pussy Wagon, now with more pink!
Class: TESP
OMG Internet!
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Quote:
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2012-01-15, 08:26 AM | #6 |
EJ22
Real Name: Sean Join Date: Sep 2003
Location: Ammon,ID
Posts: 182
Car: 2003 subi 25rs turbo
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here ya go
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the beauty of RS-T |
2012-01-17, 05:57 PM | #7 |
EJ22
Join Date: Jun 2010
Location: 220 Coney Island Drive in Sparks, NV
Posts: 104
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DO NOT USE COMETIC HEAD GASKETS. Just had an STI engine build come back for failed Cometic head gaskets at 99 miles at low boost. They also "brinell" the head and make a permanent indent in the head surface that has to be machined off each time to reseal.
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2012-01-20, 09:30 AM | #8 |
EJ22
Join Date: Jun 2010
Location: 220 Coney Island Drive in Sparks, NV
Posts: 104
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Here are some pic of the indentations.
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KSpeed Automotive 220 Coney Island Dr. Sparks, NV 89431 775-284-1011 kspeedauto@gmail.com Check us out on Yelp. Last edited by KSpeed Auto; 2012-01-20 at 10:13 AM. |
2012-01-20, 02:59 PM | #9 |
EJ22
Real Name: Sean Join Date: Sep 2003
Location: Ammon,ID
Posts: 182
Car: 2003 subi 25rs turbo
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man, thats crazy. im glad i went oem.
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2012-01-20, 03:38 PM | #10 |
The Doink
Real Name: Scott Join Date: Nov 2002
Location: Portland, OR
Posts: 20,335
Car: '09 OBXT, '02 WRX, '96 Miata
Class: PDX/TT-6
The way out is through
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I had cometics on an STi block once. That block blew up on a dyno though... so I never saw it after the fact to know what the gaskets might have done to it.
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2012-01-20, 04:41 PM | #11 |
EJ22
Join Date: Jun 2010
Location: 220 Coney Island Drive in Sparks, NV
Posts: 104
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Lots of people run Cometics successfully on lots of hi-hp engines, so I dunno.
Had the heads tested for hardness today, and they came out to 87 - 101 on the Brinell scale. A little low, but >85 is supposed to be okay.
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