Well the 426 Hemi was not a real popular option and Sorry just did not think of it at the time.
Small block people dont think about the most powerful engine ever made, cause all they ever saw was tail lights
How about a slant 6? And it is very tough to find a 318 340 360 383 426 440 or /6 in any car anymore. The ones that are running are either bored atleast .030 over or stroked, so we now have a slew of many varieties of cubes. All trying to achieve a big block status
I have a 446 and and 3 499's and 1 stock bore 318