Is 426ci 360 a small block?

That kinda power from a stock port
Is hard to grasp
Makes me feel a little better about using these on mine

Stock port.....that's kinda funny.

IQ - if you were to get a set of these RHS heads, what would it cost to have you set them up just like this build's? Complete with rockers and girdles?

It's a one off, no one has made anything like it. And I know how to make them even better, so I would change them around some, but still use the Chevy rocker system. I have tested this system to excess of 8,000 rpm.

Like I said here in post #21.............
Max horsepower with EQ heads?
..........I wouldn't reproduce this system for less than $10,000. To me it wouldn't be worth my time for less.