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Holley Fuel Line Size

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Old Jul 12, 2014 | 10:33 PM
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Default Holley Fuel Line Size

Replacing the Q-jet with a Holley 4165 and am wondering in advance if the OEM Pump-to-Carburetor fuel line will fit, as far as the fitting's thread size is concerned.

TIA.

Steve
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Old Jul 12, 2014 | 10:37 PM
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Originally Posted by Cavu2u
Replacing the Q-jet with a Holley 4165 and am wondering in advance if the OEM Pump-to-Carburetor fuel line will fit, as far as the fitting's thread size is concerned.

TIA.

Steve
If this is the Holley spread bore replacement for the Q-Jet, I would personally re-think what I am doing. Send your Q-Jet to Lars and have him set it up correctly.

I have done the Holley replacement and the Q-Jet is a better deal.
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Old Jul 13, 2014 | 06:00 AM
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Originally Posted by Phil Zell
If this is the Holley spread bore replacement for the Q-Jet, I would personally re-think what I am doing. Send your Q-Jet to Lars and have him set it up correctly.

I have done the Holley replacement and the Q-Jet is a better deal.
Thanks for the response Phil.

Q-Jet is on another engine. And it's working perfectly.
Holley is going on a 383 w/OEM Fuel Pump and Edelbrock Performer Manifold.

Question is: Are the carb fuel line IN thread size the same for both carburetors? I want to order the right size Pump-to-Carburetor fuel line for this engine.
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Old Jul 13, 2014 | 08:49 AM
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The factory 3/8" fuel pump to carburetor line threads directly to a Holley 4165/4175 without modification.
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Old Jul 13, 2014 | 01:05 PM
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Originally Posted by gerry72
The factory 3/8" fuel pump to carburetor line threads directly to a Holley 4165/4175 without modification.
Thanks Gerry!



Steve
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