Frankly, I'm glad I have no plans in the works where I'd need one of those blocks.

With the way things are in the high hp Mopar world these days, if I were looking for 1000hp...... I'd just build a BBC........ Where I could get a new American made Brodix tall deck Siamesed bore iron block with .903 lifter bores for $1995 from Jegs.
And with the money I had left over from not buying a KB block I'd be able to afford a set of assembled SR20 heads.