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Old Sep 23, 2006 | 03:52 PM
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Default tri power intake

Can someone please tell me if the 797 manifold has casting dates on it and if so where are they located.
Thanks for the help!
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Old Sep 23, 2006 | 06:40 PM
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From: Lima, OH -- 69 L71 427/435hp
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'Usually' on bottom side of oil sump.
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Old Sep 23, 2006 | 08:00 PM
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Corvette by the numbers says "most aluminum intakes have dates cast into the underside of the intake, usually under the oil splash shield." Note the use of the words "most" and "usually".
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Old Sep 23, 2006 | 08:33 PM
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Thanks for the info. I am trying to find the correct manifold for my 69 L-71 convertable.
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Old Sep 24, 2006 | 12:42 AM
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I have a couple, what date are you looking for?
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Old Sep 24, 2006 | 12:48 AM
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To check the date code you have to gently pry out the rivets holding the splash shield on. They can then be driven back in after checking it. The date code is in such a difficult position to read (remove manifold and splash shield) I would take the best manifold you can find. Only you, and the possibly the guy you bought it from, will know.

I sold a dated manifold to guy and had to tell him how to find the code. After he had received it he called and gave me a hard time for giving bogus info on Ebay. There is a "Dymo tape" number cast in which is in plain view and he thought that was the date code casting.
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Old Sep 24, 2006 | 05:17 AM
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My car was assembled in june of 69.
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