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Old Jun 11, 2010 | 04:00 PM
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did all 68 vette's have a.i.r. injection (427 390hp) from the factory?
thx scott
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Old Jun 11, 2010 | 04:22 PM
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Hi

Good question. I am also interested in this.

Reason is that there are exhaust manifolds ( for BB ) with and without the air holes on the market ?

Rgds. Günther
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Old Jun 11, 2010 | 10:59 PM
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For '68 model year AIR was needed for all BB's, due to the stepped-up Government emission requirements. Earlier years did not need AIR except for CA Corvettes.
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Old Jun 12, 2010 | 02:55 AM
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Hi

Thanks.

Wonder where the correctly dated 68 exhaust manifolds without the air holes come from ? ( aftermarket ).

Rgds. Günther
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Old Jun 14, 2010 | 10:05 AM
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the 68 im working on doesn't have the a i r stuff any more, the manifolds sure look original thought, no holes for injection pipes and lots of rust, ill check the numbers when i pull them.
scott
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Old Jun 14, 2010 | 10:40 AM
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I believe all '68s had AIR. The NCRS Judging Manual will have the information. 3880827 and 28 are the correct part numbers for the manifolds.

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Old Jun 14, 2010 | 10:47 AM
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My copy of the NCRS guide states that all '68 and '69 Corvettes had AIR, no exceptions.
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Old Jun 14, 2010 | 10:56 AM
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Originally Posted by Mike Ward
My copy of the NCRS guide states that all '68 and '69 Corvettes had AIR, no exceptions.
Thought so.
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Old Jun 14, 2010 | 12:57 PM
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Originally Posted by Mike Ward
My copy of the NCRS guide states that all '68 and '69 Corvettes had AIR, no exceptions.
So does mine
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Old Jun 14, 2010 | 09:44 PM
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Non AIR L78 Camaros and L72 Vettes .....no holes
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