Blew a head this last weekend looking for a 502 head casting #14097088 please let me know if you have any that you want to part with .

thanks all , Brian..

They should be a dime a dozen....they are known for dropping exhaust seats after mild overheats. I darn near gave mine away after swithing to Merlin heads as a result of dropping a seat.
Save yourself some problems and switch out of them now.