There is a couple places to machine the 911 engine out here east. One that comes to mind is Verden Tool in Dover. Still have to ship but not to the west coast. I know they do head work but I would try to call and ask about your case.
Machine Shop Leads - NY / NJ / CT - Rennlist Discussion Forums
I would also Dawe Motorsports. They build alot of race engines. I would imagine they could or might have some info for local shops for you.
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