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Reply to "Head/Manifold square port"

It has been said...

...that it's harder to get a good seal on the manifold if those port plates are installed, but it's probably mostly a matter of fitting them up correctly on the initial build.

If you buy them new from the one vendor who makes them, I think those 2 sheet metal stamped plates are ~$100.

I am not sure what the aftermarket will bear (if you decide not to use them).

Rocky
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