i'm with tater and the boys on this one,, and i would suggest perhaps a step further
anytime you start to seize an engine, you get metal to metal contact (piston to cylinder wall), anytime this sort of contact happens
you get scoreing, with scoreing comes loss of compression, blowby, and depending if the piston top has issues down by the rings,,
under load you can have a torch cutting by and destroy the ring seal, cause more localized heat and then a burnt piston.
even if the engine appears to run ok after a cool down i would suggest pulling the piston and a careful inspection, rehone and rering if
necessary.
i guess it depends on how much you depend on or care about this engine, if it was me,,, i would find the cause of the overheat
then do some exploratory surgury to determine if all is well, and correct as necessary any damage.
bob g