Those dished pistons do not look like the '68 - '69 flat top 9 2:1 with valve reliefs.
Here are the pics of '69 Pistons below and I have another set of '68 pistons that look just like them, factory mopar 318. They sit .040 ths down in the hole at TDC, and have full floating rods.
View attachment 1715595850
302 Heads, 714 castings are the same head too.
View attachment 1715595853
