I got this from a book called How to build BIG inch Mopar small blocks. I know Barnes and Nobles has it.
A 4.04in bore with a 4.25 crank will get you 435 ci. if you want as close to 426 as you can get, you need a 4.2 crank and a 4.02 bore, or a 4.15 in crank and a 4.045 in bore. A 4.1 in stroke...