Have you checked out 440source.com? Lots of info there.
Also do a search on amazon for mopar big block, @AndyF kinda wrote a book on it.
Do a Google search for 451 manifesto, that's his page.
You may be money ahead just buying a new stroker crank.
The manifesto gives parts for 451 to achieve 1.8, but not for 470.
I think if I already have a 440 crank, it'd be cheaper to just buy off the shelf rods and pistons vs buying a complete package from 440 source, muscle motors, etc
