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Fuel line fittings for a 1953 Super 88

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Old Jan 6, 2026 | 10:15 AM
  #1  
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Fuel line fittings for a 1953 Super 88

I have a 1953 Super 88 with a 303 and a 4 barrel rochester. I need to replace the fuel line between the fuel pump and the carburetor. I am having trouble finding the fittings for the fuel line. Does anyone know the size, flare type and thread count of both fittings? Or even maybe the nomenclature and link to where I can order them? I know it sounds petty. But none of the parts houses around me seem to have them and don't even know where to order them. Thanks.
Old Jan 6, 2026 | 11:29 AM
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Probably use the one you have for a template and bend your own...
Old Jan 6, 2026 | 02:48 PM
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They should be 3/8" fuel line inverted flare fittings. Check it out!

https://classicoldsmobile.com/forums...ittings-80049/
Old Jan 6, 2026 | 05:47 PM
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Thanks for the reply. But I am asking about the fittings that should be on the tubing.
Old Jan 6, 2026 | 05:47 PM
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Olds64....This is exactly what I was looking for. Thank you.
Old Jan 6, 2026 | 06:17 PM
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Why did you need to know what fitting your fuel lines were? Are you going to inverted flare to AN hose fittings? Make sure you don't use Teflon tape or pipe dope on those inverted flare fittings.
Old Jan 6, 2026 | 08:28 PM
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Olds64....I am asking about the fittings because I am probably going to need to replace the fuel line and the fittings that are on it are completely messed up. The parts house's we have here don't carry anything that will fit, and they don't seem to know what to order. I have checked Home Depot and also True Value Hardware and they don't either. I looked at Amazon and without knowing the "specifications" of the fittings I don't know what to order. My Oldsmobile maintenance manual doesn't go into specifics like that either. But now that I know its an inverted flare with a 3/8 by 18 thread I have ordered some. Thanks for the help. You guys on the forum are a big help.
Old Jan 7, 2026 | 04:59 AM
  #8  
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As was mentioned, you're going to have to bend a new fuel line. If the OE fittings are messed up, you'd have to cut the fuel line to remove them. I suggest using copper-nickle fuel line over steel.
Old Jan 7, 2026 | 09:00 AM
  #9  
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You might be able to buy a brake line and bend it or at least use the fitting off it. Worth a shot.
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