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68 corvette intake manifold

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Old Apr 16, 2006 | 11:52 PM
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Default 68 corvette intake manifold

Can anyone please tell me the purpose of the metal cover on the bottom of the intake manifold? I am changing my manifold for another one, but the one I am replacing had a metal cover rivited on the center bottom, whereas the new on I am going to install has the cover missing. Do I need to go to a machine shop and have the cover installed on the new on, or can I install it without the cover. They are both a 1968 327/350 manifold. Thanks for any help

Mike
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Old Apr 17, 2006 | 07:17 AM
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I believe its function is to keep the hot oil in the lifter valley off of
the manifold area under the carb. I have never seen the cover on
any of the aluminum after market manifolds so I guess its OK to run
without it.
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Old Apr 17, 2006 | 08:10 AM
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Originally Posted by chevylit
I believe its function is to keep the hot oil in the lifter valley off of
the manifold area under the carb. I have never seen the cover on
any of the aluminum after market manifolds so I guess its OK to run
without it.
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Old Apr 17, 2006 | 08:14 AM
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You can always buy a lifter valley baffle from Summit which accomplishes the same thing. Very easy to install once the intake's off.
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