Quote:
Originally Posted by TBONE1964
You also have to know which timing cover you are using. GM used two different timing covers and the later ones used the thick front seal. They did this so you could pull the timing cover with out dropping the pan. If you have a cover that is designed for the thick seal, the thin old style seal will leak. That is why when you buy a oil pan gasket set, it will or should come with two different size front seals.
I prefer cork myself with the front and rear rubber seals. This way if you ever need to just pull the timing cover, you don't have to drop the pan to do it.
With cork, I use a small amount of trim adhesive to hold the gasket in place. Also you only need silicon in the corners where the cork meets the rubber.
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My poor is a 74 and the timing cover does not have to be removed to take out pan. Wonder if this is the correct seal? The pan that came w the the motor was not leaking. I took it off because it hit the cross member. Anyway I believe that gasket was the same thickness...but I could be wrong. Geeze.. I hope my fix job last night works...