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Old 03-06-2018, 07:31 PM   #1
bubbasimms
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Opinions on Fuel Line Plumbing

Good Evening Everyone,

Here is my situation....
I installed the Brothers rear mount Blazer tank into my 69 step side project with the 250 six. I know the original line was 5/16 and the bubble flare on the mechanical fuel pump is also 5/16 but the pick up tube on the tank is a 3/8 bubble flare. There are many ways to go about this but looking for suggestions. I assume the 5/16 hard line will be adequate even with moving the tank further back, is that a correct assumption? Should I just force a piece of 5/16 hose onto the 3/8 tank fitting to tie into the 5/16 hard line? Should I use a 3/8 to 5/16 adapter barb fitting and a couple short pieces of each size hose on either side? I really want to use the minimum amount of hose and clamps. I am Leaning towards forcing 5/16 onto the 3/8 outlet and calling it good. Trivial problem I know but just looking for a second set of eyes so to speak. I don't want to touch it for another 50 years.
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Old 03-06-2018, 07:58 PM   #2
B. W.
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Re: Opinions on Fuel Line Plumbing

My opinion, forcing the smaller hose will cause it to fail sooner. I have done it & it will work but it stretches it out & it will eventually crack/split.
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Old 03-06-2018, 08:49 PM   #3
bubbasimms
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Re: Opinions on Fuel Line Plumbing

That's what I was afraid of.
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Old 03-07-2018, 02:22 PM   #4
HO455
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Re: Opinions on Fuel Line Plumbing

With modern fuel and today's planned life span engineering you can count on having to replace the hoses in 5 to 10 years. So knowing that I would either hard line it or make it easy to replace.
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1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo
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Old 03-07-2018, 03:38 PM   #5
bubbasimms
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Re: Opinions on Fuel Line Plumbing

Thanks for the input......I decided to go with a 3/8 hose Barb to 5/16 hard line fitting. Guess it doesn't look too bad.
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