Head and Intake Question

**Carleen** · #1 08-05-2010, 06:10 AM

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.

**SuperNovaSS** · #2 08-05-2010, 06:36 AM

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

Jason

Unreal · #3 08-05-2010, 10:25 AM

Late production Camaro (L78, L72) used the 291. I think its use coincided with the introduction of 70 model year for other Chevy.

**61 vert** · #4 08-05-2010, 02:48 PM

I have seen 291 heads cast in July of 69.

**turbojet427** · #5 08-05-2010, 07:02 PM

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.

**SuperNovaSS** · #6 08-05-2010, 07:42 PM

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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