For a 372 you will need a 360 crank with the mains turned down to 318-340 size, you could use factory rods resized. I'm thinking pistons might be custom, I wouldn't think you could buy .100 over 360 pistons, however I dont know this for sure.
If you were going to buy a kit from Scat or another company of that nature, just go with a 4" crank for a street machine. This is a tried and true combination already. No point in spending money for a smaller cubic inch combination unless you are racing and class rules dictate.
With your block at .060 over, I would be sure to have it sonic checked for thickness to make sure it is suitable for a performance build. I would suggest doing this before ordering any rotating assembly.
I have a W2 head 408 in my Dart and it pulls like a freight train, you would have similar results with a 4" crank in a 340 block with your w2 heads.
