Why have you reduced the holes on some water channels in the heads gaskets on a 368 engine?
It has it on Fel-Pro and also Best Gasket.

It reduces the flow of the water, and then formed the turbulence after the hole in the water direction. This then creates air bubbles in the heating system. It increases the pressure, but in a wrong way, then you get air in the system.

Does anyone know the reason why they have done it this way?





Drives: Mercury Montclair 1957th

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