What to tell the machine shop

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cchrishefish said:
LOL, My brother mentioned that he knew someone years ago that was making their own Pontiac blocks. There must be someone around that could make an aluminum head for a slant.
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A drag head may be. (with no coolant passages) A street head probably not. It would cost $20,000 ++ worth of tooling and molds just to cast the first piece. How many do you want to buy?

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With the reality of 3D printing of metals, pretty soon someone could design a head casting with all internal passages, have it 3D printed in aluminum, and then do the customary machining to the sealing surfaces, valves, etc...

I can see this happening sooner than later.
 
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