Originally Posted by
ANDY black s13
looking at the pictures I don't think they are cracked in the valve cut out areas,
I think they are marks from it having high lift cams and larger valves and the piston cut outs are for stock cams and valve sizes
the more concerning bit is the damage to the ring land area top ring in picture 2,
looks like it would hold the piston ring to the piston and be unable to move as the damage goes across the top ring groove
If an engine builder gave me back pistons in that condition I would have taken it up with them and certainly not re sold them
as just test fitted as described by the seller, you don't need to be a expert to see they are damaged/not re-sellable