Re: (Best) copper head gasket and offenhauser aluminum heads
Yup, what aussei said. The smaller holes should be at the front. This forces the water to flow evenly through the whole engine. Other wise it would just take the path of least resistance, in through the pumps straight up and out the water necks leaving the back of the engine to over heat. Copper head gaskets ,iron block, aluminum heads. Now add water and an electrical charge and you have a battery( IE mass corrosion ) ,not good. Tim
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