Look what I had in my mail today.. !
Thanks to the infamous Mr. Rotheray I was rewarded with two original gaskets for my 77 3.0. YES.
Now as I assumed (two numbers in the parts catalog, and you can tell looking at them, assymetrical) unfortunately they are different for the left and right side, and now I have two drivers side original gaskets.. anyone with two left ones that can swap?
Cheers