Slant 6 stroker?

I am aware of that. He got one from "group" buy. If I am not incorrect, the original deal was $30,000 for 1 or 10, (engineering, programing, etc) so if the total cost is the same, go for the max. Then sell the excess to recover your cost. Again, my info is not 1st hand, and could be incorrect.
PS: Lunati did a special crank for my 170 back in the '70's. Stroke equalized, indexed, and hard chrome journals at std size. To this day, that crank still looks like new (yes, I have put many runs on it :) ). They also did a "stock eliminator" cam for my engine. It would spec at the factory lift and duration, but had a faster lift rate, and I think a different LSA. Still have that cam here, somewhere.