400/426 Stroker. Ever heard of one?

If the stroke is now 3.54”, then they added .160” stroke.
If the pistons are 1.485” C/H, and the rod is 6.70”, the pistons should be down the hole .025”(in an uncut block)
1.770”(half stroke)
1.485”
6.70”
————
9.955”
.025” deck
————
9.980”