No. The combo results in "around" 451 cubes, depending on finished bore size.
Also, what cast internals are you speaking of? Even if he used a cast 440 crank, they can withstand 600 plus HP with a good quality balance job, just like the stock rods reworked and with good rod bolts installed. Chrysler bottom ends are very strong even stone stock. You got your information from a bad source.
