Copper head gaskets and aluminum heads

[hombres ruin]

Is there truth in what people say about copper head gaskets, that they should not be used with aluminum heads? Anyone know the real facts on this?

[danliveshere]

I asked this question some time ago. Composite gaskets for al. Copper for cast steel. The copper reacts with the aluminium.

[flatjack9]

If you use a good corrosion inhibitor and maintain it, you will not have a problem.

[Ed Pitts]

Edelbrock recommends copper head gaskets for their aluminum heads.
Ed

[Andy]

Originally Posted by Ed Pitts

Edelbrock recommends copper head gaskets for their aluminum heads.
Ed

Mine were eaten really bad in about a year with the copper gaskets. It did clean all the rust out of the block!! I had anti freeze in the engine.

[Tinker]

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I'm just curious as to why you wouldn't just use a composite gasket? They work well, don't they? I guess if you have the copper set already...

[hombres ruin]

I am hearing all different things. People talking about electrolysis and coppers reaction to the aluminum causing erosion.

[Tinker]

Google "aluminum and copper reaction" this will just go over the reaction (if any) of the two metals not just about gaskets, then make the decision for yourself.

[hombres ruin]

Thanks tinker. Did just that and very informative articles about copper and aluminum . Copper will sacrifice aluminum all the time to a galvanic response.