Is there something I am missing here? KB879-030 pistons have a 0.030" overbore, 20cc volume, 0.927 pin diameter, and 1.266 compression height.
Could you use a set of these forged pistons ($460.39 from summit, no hypereutectic AFAIK
) with a 6.200" connecting rod, and a 4.000" stroker crankshaft in a windsor block with cleveland 4V closed chamber heads without issues? You would lose a touch of quench height (depending on block decking, year, etc), but it would lower compression a smidge as well.