If I owned Dart I'd do a cast iron low deck big block with 440 mains. I'd design the block to be run at 4.50 bore x 4.25 stroke. I'd also invest in a few matching low deck intakes. Then I'd sit back and take orders.
I wouldn't invest a dime into making SB parts.
Bob Book would disagree with you.
With turbos and such, a 400ish inch SB will compete with most everything under the big bore space hemi and the 481X stuff.
On small tires, the SB would be easier to tune, lighter and take up much less space in the engine bay.
Won't happen though. I suspect the Ritter is close enough that 1-2 more iterations and the block would work. Look how much farther ahead the Ritter block is than the Dart, which is just an idea right now.
