Cliff's Quadrajet Parts and Rebuild Kits
General Category => Quadrajet Carb Talk and Tips => Topic started by: fat tony on July 08, 2013, 04:39:01 PM
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i just finished rebuilding my q-jet with the cliff's hp kit. also, everything new on the inside as per cliff.
i have a #6 steel braided line from the fuel pump to the carb. its a holley right now. i want to connect it to the q-jet fuel inlet. its a 1976 pontiac q-jet. what size is the thread that goes in the front of the fuel inlet. 3/8" npt doesn't fit. is it a straight pipe thread? what should i get or what can i do to the fuel inlet? i have everything necessary if i have to drill & tap.
thanks,
tony
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The front of the fuel inlet is a normal SAE thread. Can't remember what size, but it leverages a flare fitting.
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not sure what year they changed . but i believe yours should be a 1 inch 20 threads per inch. if cliff doesnt sell them you can get one from summit or quadrajetparts .com you can get ether no.6 or 8 the older carbs took a 7/8 . hope this helps
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the carb end is a 1"- 20. but, i thought i saw in cliff's book the fuel line side had something like an earl's fitting to connect to a braided hose. what i'd like to find out is what size is the fitting going into the fuel inlet or was the inlet nut drilled & tapped to get it in there.
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the carb end is a 1"- 20. but, i thought i saw in cliff's book the fuel line side had something like an earl's fitting to connect to a braided hose. what i'd like to find out is what size is the fitting going into the fuel inlet or was the inlet nut drilled & tapped to get it in there.
Like 429bbf noted, you need the 1"-20 AN fitting. I am sure if you call Cliff's shop, he will have what you need. :)
(http://quadrajetparts.com/images/products/inlet-fittings/Q2220--w600bl.gif)
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Man, I must have been distracted yesterday. I assumed he meant the end of the fuel inlet fitting, not the front of the carb. D'oh!
Yeah, as others have said 1" or 7/8 NPT.
The fuel inlet fittings can be sourced through Cliff, I'm pretty sure. The OEM one with the steel line has the straight thread with flares that I mentioned.
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thanks ethan1. that fitting is better than what i originally wanted. i was ready to modify a stock fuel inlet nut.
i found one. thanks again.
tony
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Searched the site for this topic, finally found this thread
QUESTION: The -6 AN adapter that fits in the fuel inlet pictured on this thread, does it still allow the paper filter and spring to fit properly?
I have a fitting that won't allow that fit. The long filter and spring won't fit.
Do I have the wrong fitting? Is there another that does allow the filter to fit?
thanks
doug
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doug. if you have the fitting that is shown on this post (its hollow on the inside )then the long filter and spring will fit . if your fitting is flat where it screws in and just has a hole drilled in it you will have to use the short filter. hope this helps
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doug. if you have the fitting that is shown on this post (its hollow on the inside )then the long filter and spring will fit . if your fitting is flat where it screws in and just has a hole drilled in it you will have to use the short filter. hope this helps
What he said. ;)
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doug. the fitting posted on here is the same ones i have i think they are made by RUSSEL i don't know who all sells them. i use the long filter and spring and they fit great. hope this helps.
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I use this one. It threads in where the factory fuel line did, and has a 6 AN fitting on the end.
http://www.summitracing.com/parts/rus-640380/overview/
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Like 429bbf noted, you need the 1"-20 AN fitting. I am sure if you call Cliff's shop, he will have what you need. :)
(http://quadrajetparts.com/images/products/inlet-fittings/Q2220--w600bl.gif)
Cliff, are these available through your store?
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We sell brass fuel filter housings with NPT threads in them so you can install any fitting that you want in them. Makes is a snap to convert to AN fittings......Cliff