Slant 6 Aluminum Performance Head

I don't know a lot about that head, except it is a one of one solid billet. Water jacket not needed, as the motor runs alky. It is not just a copy of a Mopar slant head in aluminum. I heard (second or third hand) that Howard was asked about producing these, and said "No way", you couldn't afford it. It is not just the head, but other things that go with it (the combination). It would cost 6 figures.
PS: Pretty sure those are flying toilets