73-87chevytrucks.com
73-87 Chevy _ GMC Trucks => Fuel Systems and Drivability => Topic started by: metalcutter1 on January 15, 2026, 12:40:02 pm
-
I am trying to find a preformed fuel line for my 1979 GMC C-10 with a 454 big block.
It's the rubber line under the hood going from the steel line from the tank to the fuel pump.
I know that I can use rubber line from the a reel, but I want to keep it as stock as possible.
I don't know the part number(that would be a great help)
All of the preformed fuel lines that I have found are 3/8, this is not 3/8.
Everything about this truck is 3/4 ton, but it's a half ton.
Any help would be appreciated.
-
Buy some fuel hose by the foot and cut to size. You aren't going to find a stock preformed rubber line for a 47 year old truck.
-
Personally, I'd either go with the Moroso aluminum fuel line (25') roll, or later-model nylon fuel line, and run compression-fittings on the ends.
If you're going for an OEM look, ignore my suggestions. :D
-
Personally, I'd either go with the Moroso aluminum fuel line (25') roll, or later-model nylon fuel line, and run compression-fittings on the ends.
If you're going for an OEM look, ignore my suggestions. :D
Although there are exceptions that depend on the country and locale having jurisdiction, hence, geographic location, the use of compression fittings in fuel systems generally is considered dangerous due to the potential for leaks, therefore, are illegal in application. Compression fittings are easy to assemble, but require an exact fit of the ferrules to the tube, which can be sensitive to over-tightening, causing tube distortion and delayed leakage. Consequently, double-flare fittings often are used and in some cases required. Ultimately, repair procedures that are considered safe with the lowest liability are those specified and published by the OEM of the equipment.
-
Order yourself a sidewinder 3/8 and 5/16 line
-
Personally, I'd either go with the Moroso aluminum fuel line (25') roll, or later-model nylon fuel line, and run compression-fittings on the ends.
If you're going for an OEM look, ignore my suggestions. :D
Although there are exceptions that depend on the country and locale having jurisdiction, hence, geographic location, the use of compression fittings in fuel systems generally is considered dangerous due to the potential for leaks, therefore, are illegal in application. Compression fittings are easy to assemble, but require an exact fit of the ferrules to the tube, which can be sensitive to over-tightening, causing tube distortion and delayed leakage. Consequently, double-flare fittings often are used and in some cases required. Ultimately, repair procedures that are considered safe with the lowest liability are those specified and published by the OEM of the equipment.
I would agree with you 100%, but the ones for nylon line as used in late model vehicles have the inner sleeve that make them a tad more idjit-proof. Personally, it would be the Moroso line for me.