Intake Manifold
Looking for info on the correct intake manifold for a 1962 327/340 I have the 3783244 now. Oil filer tube and Thermostst housing jamed together Something wrong?
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Re: Intake Manifold
Aluminum intake with casting # 3795397. -
Re: Intake Manifold
How or is the manifold for the 62 L-76 different than the one on a 63 L-76? Are they both one year manifolds? If I figure right, they were the only Aluminum AFB manifolds, at least of that so called "high rise" design, although that may be a stretch to use that term.
Stu FoxComment
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Re: Intake Manifold
Stu------
They are both one-year-only manifolds and were originally used only for the 340 hp Corvette applications.
The manifolds are virtually identical with the carburetor installed except for, of course, casting number. The difference between them involves a slight difference in the configuration of the throttle bores on the passenger ("siamesed") side.In Appreciation of John HinckleyComment
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Re: Intake Manifold
Joe;
Per chance, was the boss on the rear runner drilled and tapped on the 62? I know much is made of the 63 manifold not being so.
Stu FoxComment
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Re: Intake Manifold
Stu
Drilled and taped for what?
TerryComment
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Re: Intake Manifold
Terry;
Can't say I know for sure, specially for a 62. Over the years a number of different configurations were used for equipment that required a vacuum source including Power Brakes and/or other reservoirs, more likely in later years. I have seen a number of manifolds from the 62 and 63 era at swap meets that were drilled and tapped, and fitted with socket head plugs. Why? I don't know specially if they were factory or someone's after market requirements. My only point was there has been much made of the fact that the boss was there on 63's with the notation that they were never drilled and tapped from the factory.
Stu FoxComment
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Re: Intake Manifold
Hey, guys,
Maybe I'm not following the discussion correctly, but Stu are you referring to the cap screw made with a flared washer (not correct term) that is screwed into the '62 340 hp manifold just back of the carburetor and runners? My manifold is original but have never heard what this tapped and plugged hole was for.Comment
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Re: Intake Manifold
Originally posted photos Re: Question about missing Plug Bolt for '62 340 hp Aluminum Intake, July 2, 2009.
The "Management Attachments" would not allow me to re-post these same photos. No clue why. Refer to the post mentioned above.
LarryComment
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Re: Intake Manifold
Larry;
I am not familiar with the 62 L-76 manifold and was only throwing out there some of my recollections from my 72 year old memory. I believe, based on the 63 L-76 manifold, I was referring to a large boss that would have (if drilled and tapped) provide a vacuum tap into the runner to #8 cylinder at the very back of the manifold immediately in front of the distributor. Next to it is a tapped boss for just a mounting bolt of some sort attached to runner to #5. That looks more like it would be for a standoff bracket for a power steering hose that would attach to a fitting off the back of the carb.
Sound about right?
Stu FoxComment
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Re: Intake Manifold
I think the factory drilled/tapped 3/8" NPT hole behind the carburetor pad for vacuum fittings started in 1964, on the 4461 aluminum L-76 intake (and on the iron intakes). In '63, the power brake and Powerglide vacuum source was at the carburetor.Comment
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Re: Intake Manifold
This is the back of a service replacement 397. The drilled and tapped boss is blind; does not go through to runner.
Last edited by Bill M.; August 19, 2011, 03:18 PM.Comment
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Re: Intake Manifold
Problem: I found the correct manifold #3795397 Alum. I ordered the listed carb #3269 Carter AFB. Not close to fitting on this manifold. Is there different models of the same number I have the 3269S H-1Comment
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