kilrcady

iTrader: (1)

What type of fitting do you use to connect a hard line to an AN fitting? they all say for 50lbs or less.

Thumper28

iTrader: (4)

I know of 2 good ways to convert a hard tube to a flare fitting. I have a local hose and rubber shop that will braze on flare fittings for practically nothing. That would be my first choice.

If you want to do it yourself you are going to want to use a compression fitting to flare adapter. There are a bunch of companies that make them (Parker, Swagelok, Brennan). The tube that you are connecting to will need to be in pretty good shape to get a good seal.

Here is one on Amazon, you can also get them in brass if you don't want to splurge on a stainless fitting:

"Ham-Let Stainless Steel 316 Let-Lok Compression Fitting, Adapter, Tube OD x 37 Degree Flare"

Sebtarta

iTrader: (1)

https://ls1tech.com/forums/conversio...itting-fi.html

This might help.

darren roar

iTrader: (1)

This is how I did it. This is on my fuel tank sending unit. I cut the barb off and used a 37 degree flaring tool followed by a tube sleeve, nut and coupler.
[IMG][/IMG]

sprech

iTrader: (1)

Check out the XRP p/n 992005 - 5/16" hard tube to -6 AN

Had to cut the barbed end off of the return tube on the tank.

kilrcady

iTrader: (1)

ok thanks guys I'm on it

Project GatTagO

iTrader: (7)

Here is another great option:

http://www.purechoicemotorsports.com...rod/prd324.htm

The Pure Choice mates a SAE 45 degree flare and converts it to AN-6. Most of us can easily do 45 degree double flares which are most appropriate for automotive use.

Andrew

kilrcady

iTrader: (1)

Swagelok it is.Thanks guys

Winmon

This is the way I have done it. Just ordered some more for my up coming swap..

http://www.summitracing.com///parts/AER-FBM3671


http://www.summitracing.com/parts/AER-FBM3675

FrossB

iTrader: (1)

Good info here! Saving this thread for later!

pist0lpete

iTrader: (3)

Your best bet is a 37 degree flare tool and a tube nut and sleeve. I recently purchased this flare tool from amazon and have been very pleased with it:

Project GatTagO

iTrader: (7)

The Pure Choice fitting avoids the need for the 37 degree tool (which was never meant for automotive use), and most people already own the 45 degree tool...

Andrew

Project GatTagO

iTrader: (7)

The compression fittings can work ok. I used them when I re-plumbed my system. The problem is that they were never designed for automotive use and can loosen with the vibrations of the automotive environment. This happened to me. The 45 degree flare to AN -6 adapter won't have that problem.

Andrew

pist0lpete

iTrader: (3)

Andrew while I agree the 37 degree flare wasn't originally intended for auto use it is certainly capable. We utilize it daily on oilfield equipment with much higher pressures and vibration than an auto application would see. I am curious what your reservations are?

pist0lpete

iTrader: (3)

The pure choice fitting is a good option but looks to be limited in size availability.

S10xGN

iTrader: (11)

We use the Swedgeloks in the refinery business, never had a fitting failure that I can recall. We did lose a few lines to corrosion, PerChlorEthylene is not SS friendly, but nothing will last with that stuff!

Project GatTagO

iTrader: (7)

I have no issue with properly made 37 degree fittings and tube nuts. If they are good enough for aircraft, they are good enough for a hot rod.

However, most people don't own 37 degree tools, and good ones are fairly expensive. Comparatively, 45 degree tools are common and most shade tree mechanics probably already own one, which makes the Pure Choice fitting a great options.

Andrew

Project GatTagO

iTrader: (7)

Right. They only make a 5/16" and a 3/8" which is what most people need for the fuel lines.

Andrew

pist0lpete

iTrader: (3)

Agreed on both points Andrew just wanted to make sure I understood correctly.

LS1 pwrd NOVA

iTrader: (2)

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