Just for fun, see a video on 3800 engine rwd getting intake manifold gasket replaceme
 

Video 1 of 4 from Australia- guess the car is a Holden?

http://www.youtube.com/watch?v=zBfP7f2s2nc

And one more fun video of guy reusing old intake manifold gasket because parts store was closed:

http://www.youtube.com/watch?v=qWcL5...0D608D5090783F