AN to Hard Line
Thread Starter
Pro
Joined: Jan 2011
Posts: 586
Likes: 10
From: Alexandria VA
AN to Hard Line
All,
Designing an AN set up for my fuel lines on a carborated 454 on my 72 restomod. My question is can you use an AN to hard line fitting when the steel fuel lines (coming from the tank to the pump) contain a bubble flair? Wondering if the AN hard line fitting would seal up against that flair like it would with the compression ring on a steel line that is not flaired.
Thanks in advance for the assist.
Designing an AN set up for my fuel lines on a carborated 454 on my 72 restomod. My question is can you use an AN to hard line fitting when the steel fuel lines (coming from the tank to the pump) contain a bubble flair? Wondering if the AN hard line fitting would seal up against that flair like it would with the compression ring on a steel line that is not flaired.
Thanks in advance for the assist.
Last edited by Ranger24; Nov 9, 2018 at 12:38 PM.
Race Director
Joined: Apr 2011
Posts: 11,183
Likes: 3,335
From: North of Toronto - Ontario
I use a AN to compression fitting on my pump to carb line. (The line is stainless so I went with a swagelok fitting since the stainless doesn't allow the ferules to bite as they do on a normal steel line) With a steel line I'd have used a normal compression fitting / AN without issue, it's not under much pressure but it's a problem if it leaked 
M
M
Thread Starter
Pro
Joined: Jan 2011
Posts: 586
Likes: 10
From: Alexandria VA
For clarity, the flare my lines have are bump flares that are intended to hold a rubber line securely once clamped. Thinking I may need to cut those in order to install the AN.
Last edited by Ranger24; Nov 9, 2018 at 01:37 PM.
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Race Director
Joined: Apr 2011
Posts: 11,183
Likes: 3,335
From: North of Toronto - Ontario
M
Instructor
Joined: Mar 2013
Posts: 203
Likes: 24
From: Cincinnati OH
I reread the op first post and I dont see anything about new steel lines. I would suggest if new parts are going to be used get one with AN already on it.
Burning Brakes
Joined: May 2018
Posts: 797
Likes: 156
From: England AR
All,
Designing an AN set up for my fuel lines on a carborated 454 on my 72 restomod. My question is can you use an AN to hard line fitting when the steel fuel lines (coming from the tank to the pump) contain a bubble flair? Wondering if the AN hard line fitting would seal up against that flair like it would with the compression ring on a steel line that is not flaired.
Thanks in advance for the assist.
Designing an AN set up for my fuel lines on a carborated 454 on my 72 restomod. My question is can you use an AN to hard line fitting when the steel fuel lines (coming from the tank to the pump) contain a bubble flair? Wondering if the AN hard line fitting would seal up against that flair like it would with the compression ring on a steel line that is not flaired.
Thanks in advance for the assist.
btw, you can also get NAPA for almost any -AN fittings as well, the only thing is they are steel for hydraulics on machinery, so that might even be better if you prefer for peace of mine.
But honestly, your not putting 80+ psi on this fitting, you'll be fine.
Last edited by naramlee; Nov 9, 2018 at 07:12 PM.
Racer
Joined: Mar 2003
Posts: 346
Likes: 33
From: OKC OK
You can buy Male AN fittings that are bored out on the opposite end that allows tubing to slide inside. You could have 1 brazed on and in the event you decide to go back, just debraze the fitting and your original line is still useable.
Instructor
Joined: Mar 2014
Posts: 153
Likes: 21
https://www.summitracing.com/parts/sum-2200077b
I used these when I installed the Sniper on my 74. Just cut the flares off of the steel line.
I used these when I installed the Sniper on my 74. Just cut the flares off of the steel line.
Last edited by 502 C-3; Nov 9, 2018 at 11:37 PM.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
Several good suggestions here. The easiest (and probably the most expensive) is the compression fitting. But it makes for a 'clean' connection.
Nothing wrong with brazing the connection to steel tube. Just make sure ALL the fuel and vapors are out of it!! No worries with the compression fitting.
Nothing wrong with brazing the connection to steel tube. Just make sure ALL the fuel and vapors are out of it!! No worries with the compression fitting.
Last edited by 7T1vette; Nov 9, 2018 at 11:59 PM.