The other reason for placing the gasket with the metal side to the head is
because of the high heat. The metal material tolerates the high heat from
the head better than the facing material. The facing material is
mechanically bonded to the metal and this forms a good seal for the joint.
The facing materials (soft side) are made from high temperature resistant
material but the metal helps the gasket from degradation due to the heat.
Cheers
Al Sadur
60 A coupe, 62 A MKII, 70 B, 65 Jag 3.8S
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