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06-27-2011, 08:53 PM
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#1 |
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Registered User
Join Date: Feb 2011
Location: islamorada fl.
Posts: 466
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fuel pump/fuel line ?
Looking into changing my pump to carb line out,current line is 5/16"steel{not 3/8"}and outlet on pump is too.Aren't most sbc fuel pumps 3/8"?Its a 69 307 4 barrel.
Thanks. |
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06-27-2011, 11:16 PM
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#2 |
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Junior Member
Join Date: Dec 2006
Location: Southeast Missouri
Posts: 2,436
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Re: fuel pump/fuel line ?
I think many of the V-8 trucks had the 5/16" fuel line. I sure someone that knows more about it will chime in.
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'67 Chevy C-20 short stepper - build complete, 454/SM-465. '75 C-30 Single Cab DRW-350 small block/NP-435. '77 GMC-6500 Dump Truck, 427 Tall Deck. '92 GMC K-3500 Duallie, 454/4L80E. |
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06-28-2011, 08:13 AM
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#3 |
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Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: fuel pump/fuel line ?
i believe most V8 trucks had 3/8 and 6cyl trucks came with 5/16
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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06-28-2011, 08:32 AM
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#4 | |
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Registered User
Join Date: Feb 2011
Location: islamorada fl.
Posts: 466
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Re: fuel pump/fuel line ?
Quote:
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06-28-2011, 08:57 AM
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#5 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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Re: fuel pump/fuel line ?
your truck was probably a 2 bbl truck originally.
inline 250 got 5/16ths I think 292 got 3/8 (I could be wrong on that) All v6 trucks got 3/8 2 bbl small blocks got 5/16 4 bbl small blocks got 3/8 all big blocks got 3/8 |
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06-28-2011, 09:31 AM
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#6 | |
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Registered User
Join Date: Feb 2011
Location: islamorada fl.
Posts: 466
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Re: fuel pump/fuel line ?
Quote:
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06-28-2011, 12:35 PM
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#7 |
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Registered User
Join Date: Jun 2009
Location: CENTRAL,NJ
Posts: 586
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Re: fuel pump/fuel line ?
I think with a 307 the 5/16 line would be fine!
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06-28-2011, 01:12 PM
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#8 |
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Registered User
 
Join Date: Jan 2010
Location: Randleman, NC
Posts: 785
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Re: fuel pump/fuel line ?
I'm running 5/16 on a 350 with a 4 bbl and have not had any issues.
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06-28-2011, 02:15 PM
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#9 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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Re: fuel pump/fuel line ?
the reality is, you'd need to be holding your engine at 6000 RPM for a while to run the carb dry (assuming everything is right) with a 5/16ths line.
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06-28-2011, 09:16 PM
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#10 |
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Registered User
Join Date: Feb 2011
Location: islamorada fl.
Posts: 466
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Re: fuel pump/fuel line ?
Hearing truck fire stories I got buggered on rubber hose so I ordered a steel carb line and filter assembley{edelbrock}and a pump to filter line{steel}from LMC,all 3/8".My pump is 5/16",I'll either replace the pump or step up the outlet.I am not worried about lack of fuel,just plumbing it neat and safe.Thanks everyone.
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06-28-2011, 10:37 PM
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#11 |
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Watch out for your cornhole !
Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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Re: fuel pump/fuel line ?
In that case, you can buy a pump for a 350 at the parts store for under 20 bucks and it will have the 3/8 fitting that your new line requires. It will of course fit your 307 directly. New fuel pumps are a nice piece of mind anyway for reliability's sake.
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I'm on the Instagram- @Gearhead_Kevin |
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07-15-2011, 05:30 PM
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#12 |
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Registered User
Join Date: Feb 2011
Location: islamorada fl.
Posts: 466
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Re: fuel pump/fuel line ?
Put a 3/8" fitting in the pump.I now have all new 3/8"from pump to carb with only a few inches of thick wall rubber fuel line for good fit.Thanks for the input.
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07-15-2011, 09:21 PM
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#13 |
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Registered User
Join Date: Aug 2009
Location: St. Paul MN.
Posts: 1,996
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Re: fuel pump/fuel line ?
have any completed pics of the fuel line project
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