How to adapt factory fuel lines to AN fittings on your budget LS swap.

Amazon to 3/8 (GM FEED) adapter, amzn.to/2DfbaMH
Amazon link to 5/16 (GM RETURN), amzn.to/2DetzsR
A short how to on adapting factory GM quick connect fuel lines to AN fittings, and some cheap push lock hose tech.

[@ricksanchez6411]

That adapter has two flat o-rings inside, the seal is made by the OD of the steel tubing, not the flare...

[@TheDrivewayEngineer]

rick sanchez ok...

[@MegaNumana]

Good information but worse filming ever

[@deankay4434]

Thanks as I too agree the photo of the two parts are very confusing. But many like photographers know cameras and not parts. Part of a group, for a major car company, we were show a younger guy creating animation on a FWD automatic in cut away form. He was asked several questions, I ask him if he knew how a an automatic worked? He had no clue! Hope that "Darrel" enjoys his new hose. Thanks!

[@skkfor]

A HUGE thanks for the vid. I was having the same issue and was agitated by trying to figure out how the fitting worked on factory lines. You're right; the online pics don't show enough detail, and my Ebay part didn't have instructions. Gonna finish the job tonight. Now, my Jeep project can get a drink of go-go juice!

[@TheDrivewayEngineer]

I'm glad it helped you! I'm a bit of a visual learner, sometimes just being able to screw with something makes it all so clear to me.

[@jeremyrock7446]

Don’t waste your money on that 28 dollar 16” help fuel line

[@deankay4434]

Yes, Home Depot sells 50 foot garden hose for $12. Probably won’t fit or hold fuel for long, but is cheaper & hose!

[@jameswieler3295]

Do these only work on GM steel lines or will they work on Ford 3/8" line as well?

[@TheDrivewayEngineer]

Probably not, I'd imagine it's a proprietary connection.

[@AGuysGarage]

Thanks for the video, love your vids in general. keep on keepin on. (Joe Dirt ) ;P

[@antipasinchrist]

You are dextereous

[@enlilstyxx1011]

Well this makes a LOT more sense,, literally every pic doesn't show the adapter properly. much better than having to cut lines an put a 37deg flair on the end

[@TheDrivewayEngineer]

Yeah, they do a poor job of showing what's going on with them lol

[@learysinsight9617]

Actually that might not work. You have to have unflared tube going past the inner Orings or it will leak.

[@TheDrivewayEngineer]

It's literally designed to do this 😂 Been on my truck not leaking for 5 years

[@nandez5090]

Would these hold up with transmission fluid? Trying to make my own trans lines without having to cut the trans cooler ends

[@TheDrivewayEngineer]

There's nothing special about transmission fluid, if your cooler has these ends, they'll work.

[@RB26PWR2]

What about the plastic push lock clips in a fuel pump assembly? Do I need to ones with the plastic clips? Or this style?

[@70656jt]

I'm using the same type of fittings on my factory 1987 r10 sending unit and they are leaking fuel out of the back side of the fittings. Any tips on this. Thank you.

[@TheDrivewayEngineer]

The sending unit fittings don't take this type of fitting, these only fit the LS rails. At least they didn't fit my 87 sender, I had to use compression fittings.

[@70656jt]

@@TheDrivewayEngineer that might be why they are leaking then. Thank you, keep the good content coming.

[@enlilstyxx1011]

@@TheDrivewayEngineer good to know, Im trying to adapt the lines on my 88 R10 , I have an aeromotive Stealth340 pump and the lines just arent enough, I was looking at adding a return bung AN-6. but this would be a lot cleaner if it worked.

[@TheGoGettas310]

Whats the part number

[@13megagreek]

Great vid . Could you do one on push on connections, like pcv or heater hose to AN fitting.Thanks

[@jscrivens9426]

You need a stand for your camera, don’t breath so heavy in to the mic

[@deankay4434]

Generally, the union frowns on camera guys who give advice to a professional sound man. The “Grip” has one job, to hold the direction mic. Only the set director has artistic license over the filming and final product. But the Union can come down hard on you!

[@MotorCityDonzi]

I bought these fittings directly from the link that you posted, but they did not come with any type of O-ring or seal… It has to have something like that to make a leak free seal correct?

[@TheDrivewayEngineer]

No, notice there's no oring or seal in the video

[@MotorCityDonzi]

@@TheDrivewayEngineer okay, people were talking about them in the comments and it got me confused

[@TheDrivewayEngineer]

The taper part is the seal, it's how a flare works, no worries

[@khairirfs7624]

the cut hardline must be flared to use this fitting?

[@TheDrivewayEngineer]

It's already flared, thats the point of the fitting, don't cut anything, don't flare anything, just put these on.

[@irvingbar4569]

When that fitting is installed should it be able to spin

[@TheDrivewayEngineer]

No, they lock down

[@DemonChicken316]

Thanks bro, I assumed that's how it worked but needed to make sure before I started pulling shit apart.. what's weird in there is 2 o-rings inside the 6an side of the fitting🤷‍♂️

[@Mr334cobra]

Those o-rings must slide over the hard line to provide a good seal. There cannot be a "barb" on the tip of the hard line as the o rings won't clear the barb without getting torn up. However, the "barb" must be 1-2 inches DOWN the steel hard line and THAT is where you will place the threaded ended and that barb will act as the retainer of the adapter so it doesn't slide off.

[@thestickman1893]

Thank you so much you are a life saver

[@TheDrivewayEngineer]

Glad it helped!

[@jcanchola08]

How’s the Parker line holding up on your fuel system?

[@TheDrivewayEngineer]

The oldest stuff I have is about 2 years old, still working great.

[@evo6swap]

Thank you

[@TheDrivewayEngineer]

Glad it helped !

[@dangerousfreedom4965]

Link to hose please. Does it work with E85?

[@TheDrivewayEngineer]

It's Parker 801-6, I buy it at my local Parker store, it's all over online as well. It's not E85, or even fuel rated. It's been working fine for me for years though.

[@TvzzR2]

The hardline has o-ring at end ?

[@TheDrivewayEngineer]

No

[@2GUNMASTER]

So this is or the FUEL RAIL not the fuel line correct?

[@TheDrivewayEngineer]

No, it fits all the GM hard fittings, rail, line, filter, sending unit, whatever you need

[@TheDrivewayEngineer]

I used it on a line in the video to demonstrate, but it will work on anything that has the GM Quick Disconnect style flare.

[@daltondukes1174]

Never leaked?

[@TheDrivewayEngineer]

These ones never leak, the older ones with the plastic quick connect suck out loud though.

[@marcabuis799]

Thanks for the video. PLEASE consider your viewer when filming and make more effort in keeping the camera steady and center the subject in the viewfinder. Nothing is more displeasing to a viewer than looking at your hand and not the subject.

[@slicksloth_416]

Sheesh...

[@SD70ACE-]

Marc Abuis, just try and appreciate what people go out there way to do for others..

[@jjmccloud]

Part number?

[@jjmccloud]

Oh lmao seen it sry

[@TheDrivewayEngineer]

Just for anyone else, 644113 is for 5/16 line, and 644123 is for 3/8. ON an LS engine 3/8 is the feed and 5/16 the return, but I personally use -6 AN hose on both.

[@roysmythe8657]

what an f'n mess............

[@TheDrivewayEngineer]

If you'd like to dress up like a french maid your welcome to come clean my garage. I'm too busy building turbo charged trucks.

[@alexb4409]

Yeah...ok

[@theoutlaw2395]

@ 1:22, is that a compression fitting on the end of the flare to seal up to the adapter?