I'm replacing a leaky rear valve rocker cover gasket on a 2002 GTP and the valve cover looks melted on the outside and chipped on the inside around where it notches in to clear the 3 fuel injectors. Is the new gasket going to seal or do I need to replace the cover? Thanks in advance.

My mother's 2002 GTP is leaking oil and from what I can see, I suspect it's the rear valve rocker cover gasket. The front gasket was replaced under recall and the lower intake gasket was replaced by the dealer a few years back. I just got laid-off so I have plenty of time now to do the repair...