Hello all, I'm wondering if any of you know of a fitting adapter that just screws on to a hard fuel line nut, instead of cutting the line for a compression fit AN adapter? I'm upgrading my built 283 to multi-port EFI this winter. The plan is to replace the smaller fuel line with two Shafer's Classic 3/8 feed and return hard lines to stay NHRA legal, with the last foot as -6 AN PTFE going into a fuel pressure regulator, then to the Pro Flo 4 fuel rail. I've never run fuel line before, so the idea of a cutting a hard line and fitting a compression fit adapter is making me nervous, but maybe it shouldn't? I already have some Earl's hard line to -6 AN compression adapter fittings in my cart, but am wondering: does an adapter exist with a female 3/8 thread on one end, and male -6 AN on the other, that the hard line nut would just screw into? Thank you for your advice.
Yes there is , But , 3/8s "" Thread"" to 6 male? Or 3/8 OD hard line ? to 6 male ? & or Inverted ? The web site with pic above Is NPT to Male #6 AN /Jic Many options brands Parker Aeroquip Earls Red Horse Vibrant Ext Stay away from cheap knock off china Fittings Aluminum, steel or brass
this? https://summitracing.com/parts/fra-491940-bl they have other genders too, but I think this is what you described
Oh wow thank you all for these. Had no idea there were options like this. 19Eddy30 I need to call Shafer's this week to verify the nut thread type but it's on a standard 3/8 OD fuel line. Will keep you all posted, and thanks again.
Oh, I got the wrong part, I was thinking 283, not 3/8" you might want to look at this one https://www.summitracing.com/parts/fra-491942-bl
Fitting, Adapter, AN to Inverted Flare, Straight, Steel, Zinc, -6 AN, 1/2-20 in. Inverted Flare, Each https://www.summitracing.com/parts/...GaRzONr8YM0_36nhmfb8bs7t9SMWyKgMONHPKkmsRHR74
Gotcha, thanks. Did I mention that I've been tuning the hell out of my Edelbrock AVS2's rods and jets lately?
Another option is to take a -6 AN (or JIS) union, cut one of the nipples off and drill to 3/8". Silver solder the tube into the fitting. The first couple of these I did I took to my local hydraulic shop to have done, but finally just asked if I could buy a stick of silver solder and did it myself. I don't trust any adapter with orings in it. 37 degree or inverted flare is ok but still with the potential to leak
Honestly, you ought to get a decent 37 degree flaring tool and some AN or JIC (industrial, steel, cheaper) fittings and jus give it a try. Its really pretty easy if you get a good flaring tool. The 37 degree are generally more expensive, but they have a mandrel that moves eccentrically as it flares and helps prevent cracking the tubing. Then you have the ability to do this forever instead of hunting special fittings . If you decide to do that, shop around for the 37 degree flare. Some are real expensive. I have one from Inline Tube that I like but it was somewhat cheaper when I bought it. Amazon has them for $107.95 now. Some reviews say it won't do stainless....I haven't tried that so can't say....but its rated to do stainless. It does nice work on steel and aluminum. May be another brand on Amazon thats cheaper but I know this is a decent one. It has a ratcheting mechanism where others don't.
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