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View Full Version : 7/8" to -6 fitting for Q-Jet...



Mr Nick
03-12-2007, 06:00 AM
I got these for to run -6 line to my Q-Jet, they go in the carb body replacing the filter housing.

https://static1.pt-content.com/images/pt/2007/03/rus640221_w-1.jpg

http://store.summitracing.com/partdetail.asp?autofilter=1&part=RUS%2D640221&N=700+4294924496+4294839052+4294849374+4294849373+ 4294906742+115&autoview=sku

But for whatever reason they don't thread in. The threads (pitch?) appears to be the same. I know my Q-Jet has 7/8" threads on it, some are 1" I can get them in only about 1/3 of a turn, then it binds. The factory housing I can thread in almost all the way by hand.

Anybody know what I need?

Bad Bowtie
03-12-2007, 06:33 AM
Nick,
As you said... you know that some quads are 1"x20 and i'm sure if your carb was the 1" ( i think 1975 and up ) your 7/8 fitting would would be very loose in the carb. I dont have any answers but would recommend that you put a little bit of anti-sieze compound on the threads to help make sure you dont get the fitting locked up in the carb ( if you get it that far). If you are sure its the correct fitting I would keep working with it. Check your local parts store for a tap of that size. I think i have seen one designed for the purpose of repairing the threads on the quadrajets. Good Luck
BB

406 Q-ship
03-13-2007, 12:44 AM
For the 74 up Q-jet the Russell # 640340 that is the -6 end threaded 1" - 20. Those fitting look more like for Holley's.