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Jun 5, 2014 | 04:46 PM

rustyleerusk

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carb adapter

Do they make an adapter plate that would let me take off my one barrel and put on a four barrel that I have from a jeep project?

Jun 5, 2014 | 08:10 PM

Franklin2

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Never seen one. It would not work very well if they did make one. Even the 2bbl to 4bbl adapters don't work very well.

Jun 5, 2014 | 11:05 PM

rustyleerusk

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ok, do they make a 4 barrel manifold for a straight 6?

Jun 6, 2014 | 07:52 AM

Rogue_Wulff

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From: Lost

Yes they do. Offenhouser makes 2 different styles, both are available thru sources like summit or jegs.

Jun 6, 2014 | 09:35 PM

Franklin2

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From: Virginia

Here's another source.

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Jun 7, 2014 | 07:34 AM

bill06447

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Just curious, what would a 4 bbl carb do on one of these engines with the stock manifold besides drain your gas tanks? ~Bill

Jun 7, 2014 | 07:44 AM

Franklin2

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Quote:

Originally Posted by bill06447

Just curious, what would a 4 bbl carb do on one of these engines with the stock manifold besides drain your gas tanks? ~Bill

It would not even do that. It probably would not run well enough to even work.

Think of the carb like a paint spray gun. That's really exactly how it works, lots of airflow passing by, picking up fuel and atomizing it. If you have a huge carb throat with air passing by, and then it necks down to a very small hole in the intake, it fouls your airflow all up.

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Jun 7, 2014 | 09:47 AM

Rogue_Wulff

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From: Lost

Quote:

Originally Posted by rustyleerusk

so no good reason to go to a 4 barrel carb on a 6 cylinder engine?

With a proper intake, they work fine, so long as you don't try slapping a huge CFM rated carb on it. 500 CFM is plenty for a 300, in the RPM range it is capable of being used in without heavy internal mods.

The 1bbl carb/intake only has a 1-1/2 or 1-3/4" hole for the air to flow thru. Sticking a 4bbl carb over that, will give the same net airflow that the 1bbl carb can give, yet have a rather restricted path to follow.