On Jan 12, 8:58*pm, "Maxwell" #$$9#@%%%.^^^ wrote:

Do you have any examples of something being cast as
complex as an air cooled cylinder head? Coffee cups, duck decoys, and alike
are useful items, but hardly good examples for the task at hand.

You ever heard of something called an internet search engine? Try
Google, Yahoo, Altavista, Ask, or Dogpile. (add a "dot"com to the end
to make 'em work)

Examples of lost foam casting of the complexity required are quite
common.
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L