AN Fuel Line
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Joined: Dec 2005
Posts: 76
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From: St Louis MO
AN Fuel Line
I am getting ready to replace the carb on my 73 small block. Does anyone know how long of a piece of AN -6 fuel line I need from the fuel pump to the carb?
The fuel inlet on the new carb is very close to where the original q-jet inlet is.
Thanks,
Budshark
The fuel inlet on the new carb is very close to where the original q-jet inlet is.
Thanks,
Budshark
Drifting
Joined: Aug 2003
Posts: 1,868
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From: Mascoutah IL
Rogman
Melting Slicks
Joined: Feb 2006
Posts: 3,428
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From: Japan
If the original metal fuel line is really close as you say to where you need it why replace it with AN-type hose? Modern alco-gas eats these lines from the inside out (ask me how I know this) and can be a real fire hazard in the engine compartment of a Corvette. There's a reason GM used steel lines from pump to carb...
Le Mans Master
Joined: Oct 2006
Posts: 7,123
Likes: 433
From: Gladstone MO
C3 of Year Finalist (appearance mods) 2019
I use a 3/8 steel line and bend as needed, then flare it for -6AN fittings. I'm no fan of the braided lines under the hood- especially on the carb side of the fuel pump
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Racer
Joined: Jun 2011
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I just pulled all my AN lines and fittings and I'm going stainless hardline as well, mixed in with some teflon lines and fittings. Vapors coming thru rubber were awfull.
dembo, your lines look good and clean. Is it all hard line to the frame?
dembo, your lines look good and clean. Is it all hard line to the frame?
Last edited by tekvette; Mar 15, 2012 at 05:27 PM. Reason: .....
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Burning Brakes
Joined: Oct 2001
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From: Okinawa Okinawa
Burning Brakes
Joined: May 2007
Posts: 1,022
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From: Lokeren, Belgium
Thanks! It does require patience and a few extra feet of tubing for practice. I used the rigid flaring tool, the cheap summit bending tool, summit nut and collars, 2 swadgelok couplings and a coat hanger.
From frame line supply and return go to the pump with the standard pre formed rubber hoses. From the pump to the carb are two hardlines (you see them both in the pic) as I couldn't snake in a single piece line with the serpentine brackets. The link Scott posted helped me alot.
I still need to fab a bracket to hold it to the compressor to eliminate all vibration
Nick
view on bottom of pump
From frame line supply and return go to the pump with the standard pre formed rubber hoses. From the pump to the carb are two hardlines (you see them both in the pic) as I couldn't snake in a single piece line with the serpentine brackets. The link Scott posted helped me alot.
I still need to fab a bracket to hold it to the compressor to eliminate all vibration
Nick
view on bottom of pump
Drifting
Joined: Jul 2007
Posts: 1,889
Likes: 23
From: Kansas
Yes Sir; A good rule of Thumb to use on rubber gas lines. No longer than Six inches (6"). Have a great day. My 1982 has rubber at the tank, & at the in line filter at the frame. Gene
Last edited by doctorgene; Mar 17, 2012 at 01:17 PM.
