Pistons that say it is for the stroker crank your going to use. Now is that a 4 or 4.125 or a 4.25 crank?
What is the bore size needed?4.0 crank and I agree on the help
Forged or Hyper?
What compression ratio are you looking for?
Dish, domed or flat top?
You need a book or two to read and a machinist willing to help you.