Swapping from 330hp to a stock(right now) 502, 415hp
Want to replace oil cooler. What should I get.
Would a 16" combo cooler work?
I'd run a 'Perma-Cool' thermostat.
Will this set-up work if I were to build the motor later?

I did the exact same swap, used the Eddie Marine large and temps at the filter pad were a consistent 195 to 215 with the 502.

did you use a thermostat with that cooler?