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Living in a cage of fear
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16,462 Posts
Discussion Starter #1 (Edited)
I need a couple fuel inlet adapters for the new 6109's I built.
They have 4 side hung primary bowls.
I am placing what I hope is my final order for the last little stuff and I do not know what the thread size is for the bowls.

The OD of the threads for the 2 6AN fittings I have that fit are 0.555 on the thread OD.

The ones I am looking at on Summit do not state what bowls they fit.

What is the thread size for the Holley side hung bowls??

I'm thinking it is the 9/16 24 ??

Thanks!!
 

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Premium Member
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All of my Holley's use a 7/8-20, but there are also fittings listed for Holley that are 9/16-24, which is what your measurement would appear to translate to.
 

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Living in a cage of fear
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16,462 Posts
Discussion Starter #4
Thanks Guys!

I have a Holley 4150 on the shelf with center floats and it has the bigger inlet (7/8")

I converted the metric ones to decimal (in.), nothing was close to that OD, the 9/16 24 is the only one that was even close.

Thanks again for confirmation!!!:)devil
 
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