Thread: SBC Head gasket question

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Originally Posted by jlbruce

I am building a SBC with Edelbrock aluminum heads and intake.

I noticed the head gasket between the 3/5 and 4/6 cylinders has small (1/8") holes, but the block and heads water channels have much larger holes (1").

Can I drill out the head gasket to match the heads/block? I never drive my car in the winter so I would like to keep it as cool as possible.

You are not by chance talking about the "steam holes" in a 400 SBC head gasket.