Thread: Olds 455 intake sealing question.

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That is what I was considering doing, using the rubber seals and adding some sealant to the top and bottom. I think the reason we had no problem getting the rubber ones to seal with the tin gasket is that the composite ones are a lot thicker, moving the manifold up higher and off of the rubber ones a little. I also put a dab of rtv in the 4 corners of the rubber ones as that is what they usually tell you in the gasket instructions.

Don

I called Mondello just now to see what their thoughts were on the front intake seals. He said to use the rubber front and rear seals and put silicone sealant under and on top of them. That makes sense, and confirms what you said, Rrumbler. Thanks for your suggestion.

We ordered a new gasket set and will get it installed this week.

Don