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By 55charliebird - 7 Years Ago
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There is a 1/2 thick adaptor on the intake manifold. Does the Holly 4000 T-pot need an adaptor under it? What is the purpose of the adaptor, anyway? Can I mount the carb directly on the thin gasket that came with it?
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By charliemccraney - 7 Years Ago
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Picture or the intake manifold casting numbers will help to answer your question.
If it is an adapter installed on a 4 barrel manifold, then the T-pot will very likely mount directly to the manifold. The adapter is probably there to fit a more modern carburetor.
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By MoonShadow - 7 Years Ago
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Is the spacer metal or wood/plastic? They serve to keep the heat from the intake away from the carburetor. Look up Phenolic spacers on Google.
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By DryLakesRacer - 7 Years Ago
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Are you sure it is an adapter? I use either a 1/2" or 3/8" phenolic spacer under 4000't-pot or any other carb for that matter. If is an adapter it will be for a larger base carb. A 55 used multiple gaskets as I remember and a 56 used a single. Can't remember why.
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By 55charliebird - 7 Years Ago
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U R correct. It is a spacer. Looks like multiple spacers/gaskets that are stapled together to accumulate 1/2 inch. Should I run the TPOT w/o spacer?
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By 55charliebird - 7 Years Ago
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It is a spacer, the exact size of the bottom of the TPOT. So i'll keep it there. Cant hurt anything unless it loses vacuum.
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By TBird55 - 7 Years Ago
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That was the factory spacer for the 55 T-Birds. I replaced the one on mine with a 1/4 phenolic spacer since the gaskets that were stapled together were starting to deteriorate too much. The phenolic spacer helps keep the carb cooler than the stock cast intake.
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