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Old 01-10-2003, 12:37 AM   #1
Stubaru
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Default Copper Gasket Questions

What are the downsides to copper head gaskets, is it true that they can alter compression ratios?


Thanks,
Stu
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Old 01-10-2003, 02:17 AM   #2
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Copper head gasket is best when used on an o-ringed block, i.e. in boosted cars

I'm told even a very thick one may only drop CR by 0.2 - 0.3
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Old 01-10-2003, 11:29 AM   #3
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Are the a good option for correcting constant head gasket issues. Like in the 98 EJ25 DOHC engines? Or are they strictly for boosted engines?


Stu
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Old 01-10-2003, 01:20 PM   #4
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they suck, they leak, they never seal....DO NOT USE THEM
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Old 01-10-2003, 02:25 PM   #5
Stubaru
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Hummm....you sound pretty sure. If they are indeed so bad why are they around?


Stu
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Old 01-11-2003, 03:25 AM   #6
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you want an o-ringed block to use them to prevent leaks, sorry I didn't clarify that in my 1st post.
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Old 01-11-2003, 03:38 AM   #7
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Quote:
Originally posted by Stubaru
Hummm....you sound pretty sure. If they are indeed so bad why are they around?


Stu
because they are for race use only, copper does not expand at the same rate as alumnium causing them to constantly leak, they are designed for use on vehicles where the heads are on and off constantly, you can re-use a copper gasket about 4 times depending on the original thickness of the material. I would NEVER and i mean NEVER use one ever again in a street driven vehicle, 4 copper head gaskets, 4 leakers.

jeremy
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Old 01-11-2003, 09:09 AM   #8
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Ok, that all makes sense to me, thanks fellas.


Stu
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