"jim beam" <spamvortex@bad.example.net> wrote in message
news:Z4mdnYYlAsIxAYnYnZ2dnUVZ_oKdnZ2d@speakeasy.ne t...
> The head needs to be finished to near mirror finish to give a long term
> seal. if you really /must/ skim the head, make sure you inspect the work
> of the shop on other heads before you let them touch yours. if they
> produce near mirror, go ahead and use them. if they produce stuff with
> milling marks and ridges on it, move right along. and don't believe any
> story about the head needing milling marks to "grip" the gasket - that's
> bunk.
>
Some shop that fouled up a milling must have come up with that and described
it as a "feature."

Yeah, feature, that's the ticket... it needs those scratches. Hate to have
the head slip plumb off the gasket because it's so smooth, right?

Mike