Slant 6 Aluminum Performance Head

273 said
I see little point in a aluminum head other then it's kewl.

A ported out factory head takes a /6 out to fairly radical level not much more room for NA power.

/6 is fairly light anyways lighter is always better though.

Basically if some offered a cnc ported reworked factory head that peeps could just bolt on it would 90% of what a aluminum head could offer most anyways.
And if they sold like hotcakes then some company might do aluminum if they seen a market.
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The main problem with the Slant 6 head is the flow. The head was designed for the smaller 170 CI. I have a 68-74 head sitting on my bench which has the more desirable combustion chamber than my 1964 head. The machine shop near me wants around $1500 to install the larger valves and port it out. So, I am waiting to see where this aluminum head thing goes before investing my money in my heavy head.