I got to looking for any numbers on the metal A.I.R. manifold that connects to the exhaust manifold(has 4 pipes that connect to the exhaust manifold and the other end has the anti back fire valve screwed on). I want to take them off and clean them up and refinish them. I can find no numbers on these. I was told the numbers should be 333832 and 333831. Can some one help he, is this correct and also am I looking for numbers that were not there or most likely the wrong place. thank you Dale
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Re: C 2 K 19 A.I.R. mainifold's What Engine? *NM*
Bill Clupper #618 -
Re: C 2 K 19 A.I.R. mainifold's What Engine?
Sorry CRS, 67, 327, k19, C-60. thanksComment
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Re: C 2 K 19 A.I.R. mainifold's
Dale------
There are no part numbers on the AIR pipe assemblies. However, if there were part numbers on these, they would NOT BE GM #333831 and 333832 if the pipes were original 1967 pieces or correct replacement pieces. Those numbers are later PRODUCTION and SERVICE pieces which became SERVICE for 67-72 applications with small block and AIR.
The part numbers that were originally used for your application were GM #3905297, left side, and GM #3877480, right side. The GM #333831 and 333832 will SERVICE your application perfectly, but their configuration differs slightly from the originals. Also, the 333831 and 333832 were manufactured in TWO different configurations (different suppliers). One configuration has the "crimped" ends on the large, horizontal tube section. This is the version that is similar in configuration to the original 67-72. The other version of the 333831 and 333832 uses "swaged and tapered" ends of the large horizontal tube section. This style was not originally used on 66-72 small blocks.In Appreciation of John HinckleyComment
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Re: C 2 K 19 A.I.R. mainifold's
Joe, I dont know what "crimped" or "swaged and tapered" look like. In my "Vette Vues Fact Book" on page 246, middle picture shows the drivers side of the K 19 AIR pipe (page 247 might have a better picture). My AIR pipe looks like the picture. The flattened end where the large pipe goes into the smaller pipe is vertical to the plane of the 4 pipes that enter the manifold. On the passenger side the flattened portion is vertical to the 4 pipes. I am told things then, I have to come to the NCRS site to get the right information. Thanks to ALL. DaleComment
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Re: C 2 K 19 A.I.R. mainifold's
Dale-----
"Flattened" is what I mean by "crimped"; the "flattened" style is correct for 66-72 Corvettes. The 66-72 right side were the same. The 67-72 left side are the same. The 67-72 left side have a verical pipe with a forward bend; 1966 has a straight vertical pipe.In Appreciation of John HinckleyComment
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Re: C 2 K 19 A.I.R. mainifold's
Thank you Joe. They look like your explanation. The right side has a short (2in)pipe that sticks straight up. The anti back fire valve screws on it. Are they all this short or is it to clear the C 60 compressor? I have seen pictures of longer ones curved over the valve cover without A/C. ??? D/Comment
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Re: C 2 K 19 A.I.R. mainifold's
dale-----
The 66-72 right side small block pipe assemblies were all the same, regardless of A/C, or not.In Appreciation of John HinckleyComment
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Re: C 2 K 19 A.I.R. mainifold's
Thanks Joe, The pictures all show a short pipe with the "Y" shaped check valve slightly below and between the compressor and the valve cover. My assembly manual shows it coming up between them with the "Y" shaped check valve curving in above the valve cover. The manual does not show the compressor in that drawing. Thanks again, DaleComment
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