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  #1  
Old 08-05-2010, 06:10 AM
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Carleen Carleen is offline
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Default Re: Head and Intake Question

From MorTec

3964291....69-72...rect..CLOSED..396, 402, 427, 454, 109cc chamber, Large or small hex spark plugs used, crate motor usage in years after 1970.
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Old 08-05-2010, 06:36 AM
SuperNovaSS SuperNovaSS is offline
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Default Re: Head and Intake Question

That was not a date. that was a casting check. The date would have been somewhere else.


Jason
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Old 08-05-2010, 10:25 AM
Unreal Unreal is offline
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Default Re: Head and Intake Question

Late production Camaro (L78, L72) used the 291. I think its use coincided with the introduction of 70 model year for other Chevy.
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Old 08-05-2010, 02:48 PM
61 vert 61 vert is offline
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Default Re: Head and Intake Question

I have seen 291 heads cast in July of 69.
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Old 08-05-2010, 07:02 PM
turbojet427 turbojet427 is offline
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Default Re: Head and Intake Question

I ended up purchasing the 163 intake. The intake has no date on it. The casting check numbers are in the location were the date would normally be. The snowflake is identical to 68 and 69 dated aluminum intakes that I already have.
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  #6  
Old 08-05-2010, 07:42 PM
SuperNovaSS SuperNovaSS is offline
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Default Re: Head and Intake Question

If it is a 68/69 intake the date should be on the belly of the intake where the heat cross over is. Sometimes they get worn off from the intake sliding around.

Jason
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