Re 1966 427/425 L72 - Were the end seals for intake manifold originally cork ? If so - where can they be purchased ?
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Re: 66 427/425 L72 Original Intake End Seals
they were rubber and come with generic intake manifold gasket sets. however, what you'll get from todays gasket sets won't have a rectangular rubber tab projecting horizontally beyond the engine block/intake maifold. these rubber tabs had GM embossed on them. these original seals are to be found in NOS GM intake gasket sets and are scarce. mike -
Re: 66 427/425 L72 Original Intake End Seals
Mike
I'd like to see a picture of the original gaskets to which you refer. I assume the rectangular tabs protrude from the main side gaskets - not the small end gaskets. The 66 Chassis Manual has a picture but is not clear. Any ideas where to see these ?Comment
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Re: 66 427/425 L72 Original Intake End Seals
Peter-----
No, it's the rubber end seals that Mike is referring to. The "GM" trademark is embossed on the small "flaps" that extend over the ends of the block. If I recall correctly, the one on the front seal ends up being positioned inside the lifter valley and, thus, unseen. The one on the rear has the GM-embossed flap on the outside of the block and, theoretically, "seeable".In Appreciation of John HinckleyComment
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Re: 66 427/425 L72 Original Intake End Seals
its the front tabs that are visable. rears can or can't be viewed but most originals i'v e seen protrude at the rear. mikeComment
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