Scalloped potatoes and oven fried pork copsihave scl
Potatoes are forgiving; they can bake longer.

the temperature difference between 425 and 450 is not big, i would expect them to take about the same time.

To be on the safe side, I would put the potatoes 15 minutes before the pork and bake them up nicely and take them out when they are ready.

curious what is "ocean fried pork chops" ? I assume it's a typo for "oven fried pork chops" ?