I'd use the longer rod but it probably doesn't matter much for most builds. ICON has 0.060 over 400 stroker pistons but 440Source doesn't stock them. So you have to buy the crank and rods from one vendor and the pistons from another vendor.

You can save some money by using a 440Source crank, SCAT I beam rods, and ICON pistons. You can get the rods and pistons from Summit.