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Old 06-16-2009, 07:58 PM   #1
72truckman
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5.3 fuel line

"you can also use aliminum tube and an fittings. its easy to bend and cheap.
3/8 fuel line- http://www.jegs.com/i/JEGS/555/15100/10002/-1
compression fittings- http://www.jegs.com/i/Earl%26%23039%...65106/10002/-1
pay no attention to that 50 psi max bull stuff"

It shows use for only 25PSI, can i use this safely? what have you used?
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Old 06-16-2009, 08:08 PM   #2
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Re: 5.3 fuel line

I used my stock fuel line(hard line on frame) and used the hard tube adapters to -6AN to go to motor and fuel tank.
http://www.jegs.com/i/JEGS/555/100550/10002/-1
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Old 06-17-2009, 03:41 AM   #3
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Re: 5.3 fuel line

I just plumbed mine using dorman hard plastic line and fittings, like new style vehicles. this is the first time I have used it, but seems to work pretty good.
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Old 06-17-2009, 04:06 AM   #4
Sicmaro
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Re: 5.3 fuel line

I used factory gm plastic quick disconnects and high pressure rubber fuel line (goodyear).

here's a pic of the connection at the rails....


here's a pic of the line at the pumps....
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Old 06-17-2009, 09:44 AM   #5
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Re: 5.3 fuel line

I used the Jeg's 3/8" aluminum hardline for my LT1 and I havent had any problems so far. I used the AN adapters to the stock quick disconnects on the engine. I run at least 40 psi at idle and Im sure 10 psi or more over that at WOT the Walboro pump will do up to 100 psi if unregulated so I am confident so far. Hope this helps....






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Last edited by 6772owner; 06-17-2009 at 09:45 AM. Reason: pics
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Old 06-17-2009, 10:16 AM   #6
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Re: 5.3 fuel line

I used aluminum fuel lines, and -6 AN fittings. I have some braided stainless hose also to allow for engine movement as well as from the tank to the fuel filter/regulator. I used some QD fittings as well.
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Old 06-17-2009, 03:34 PM   #7
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Re: 5.3 fuel line

...

Last edited by 72truckman; 06-17-2009 at 03:36 PM.
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Old 06-17-2009, 03:35 PM   #8
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Re: 5.3 fuel line

Quote:
Originally Posted by Sicmaro View Post
I used factory gm plastic quick disconnects and high pressure rubber fuel line (goodyear).

here's a pic of the connection at the rails....


here's a pic of the line at the pumps....
Where Did you get the factory quick disconnects?
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My 1972 Blazer 5.3 E85/ NV4500 5spd 4x4
Work in Progress
http://67-72chevytrucks.com/vboard/s...d.php?t=291482

****SOLD!!!!!**** 1965 GMC 4X4
http://67-72chevytrucks.com/vboard/s...d.php?t=294727
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Old 06-17-2009, 04:09 PM   #9
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Re: 5.3 fuel line

... And is that Fuel injection hose different from just regular fuel line?
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My 1972 Blazer 5.3 E85/ NV4500 5spd 4x4
Work in Progress
http://67-72chevytrucks.com/vboard/s...d.php?t=291482

****SOLD!!!!!**** 1965 GMC 4X4
http://67-72chevytrucks.com/vboard/s...d.php?t=294727
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Old 06-17-2009, 11:34 PM   #10
Sicmaro
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Re: 5.3 fuel line

I got the quick connects from the crashed vette. they are the fittings for the fuel filter. the hose is fuel injection hose, has a plastic liner instead. thin blue plastic surrounded by the black rubber. I used high pressure clamps also.
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Old 06-18-2009, 03:10 AM   #11
72truckman
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Re: 5.3 fuel line

Quote:
Originally Posted by Sicmaro View Post
I got the quick connects from the crashed vette. they are the fittings for the fuel filter. the hose is fuel injection hose, has a plastic liner instead. thin blue plastic surrounded by the black rubber. I used high pressure clamps also.
Im computer challenged tonigh and cant find anything..... where did you find the high pressure hose clips

Also, could i have a pic of your corvette regulator mounted to the frame?
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My 1972 Blazer 5.3 E85/ NV4500 5spd 4x4
Work in Progress
http://67-72chevytrucks.com/vboard/s...d.php?t=291482

****SOLD!!!!!**** 1965 GMC 4X4
http://67-72chevytrucks.com/vboard/s...d.php?t=294727

Last edited by 72truckman; 06-18-2009 at 03:11 AM.
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Old 06-18-2009, 09:04 AM   #12
6772owner
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Re: 5.3 fuel line

I bought the fuel injection hose clamps at Advance Auto Parts when I did mine, they are specific for this purpose and they have all the popular sizes.
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2002 Saturn SL2, My D/D
2019 Ford Fusion SE, Ecoboost - Wife's D/D
1993 Camaro Z28, A4, CAI, Cat-Back Exhaust

Project C10 (my 72' C10 w/96' LT1, 700R4, bagged F&R, 18's (for now), Short/Fleet) -- SOLD!
Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=313644
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Old 06-18-2009, 11:43 AM   #13
Sicmaro
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Re: 5.3 fuel line

Quote:
Originally Posted by 72truckman View Post
Im computer challenged tonigh and cant find anything..... where did you find the high pressure hose clips

Also, could i have a pic of your corvette regulator mounted to the frame?
Most of my clips our the clamp down style. I got those from my old shop i worked at. They do make screw down style high pressure clamps. should be able to find them at most auto parts stores.

I didn't use the vette regulator. I used a truck fuel rail that was regulated and had a built in return line........
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