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
There is a lot of work that has to be done to a 440 crank to get it to work in a 400 block, and then only get 451. IF it fits the budget , a matched balanced kit is the way to go , in my opinion, even if i did have a 440 crank.
