intake manifold gasket - leaking antifreeze

My reliable 2000 Buick Century seems to have the 120000 mile blues. Water pump and dimmer switch a couple of weeks ago and now it's leaking antifreeze. My husband put a new intake manifold gasket on our daughter's 1997 Malibu a year ago - is there any difference with the Buick? I think they are both 6 cyl.

There may be some differences between the engines but the principle is the same. If he changed the gaskets on the 1997 he should have no problems changing the gaskets on your car.