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Re: head gasket, any mods while I am in there?
"Graydon D. Stuckey" <email@example.com> wrote:
> I figured I'd do only some minor "cleaning up" of the ports to smooth
> the airflow ever so slightly, but I found out that the exh ports were
> _much_ smaller than the gasket so I gasket matched the exh ports.
Is anyone else familiar with the term "inversion dam"? I heard or read
somewhere that the non-turbo motors have a smaller exhaust port area
than the exhaust manifold port area, to prevent sucking air back into
I am contemplating mods to a head for my 4ksq, and I want to get some
feedback about this.