Nope, won't fit.
However, I just threw together this cable and I'm completely beside myself. It looks so cool and it works perfectly, all from miscellaneous parts from the computer recycler.
The official olePigeon brand internal to external game port cable.
Screws right into where the serial port would normally go. Pin 1 is the rounded corner so I know which direction to plug the joystick in. I was playing Conan and Up 'n Down today. Pretty fun at 2x the speed I'm normally used to.
Montezuma's Revenge is extremely difficult at 2x speed. Very fun.