If your block would go 4.070 here is a decent forged dish not priced too bad.

https://www.ebay.com/itm/8141-2-12351-070-Chrys-360-Dish-14-5cc-SRS-Pistons-4-070-Bore-1-664-C-H/262408540929?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649