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#1 |
Registered User
Join Date: Mar 2010
Location: Pueblo West, CO
Posts: 944
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Fuel Line / Sending Unit ?'s
I have a 67 C10 that originally had a L6. It now has a 350. The gas tank sending unit is bad and I am going to replace it. If I stay with the original 5/16th sending unit and and fuel line will it rob my V8 of fuel? I am not planning on adding any Hi Perf stuff just a nice running 350. Or should I switch everything out to the 3/8th. To me it just doesn't seem like that the two hoses have that much difference that my engine would get starved for fuel.
What say you gentlemen?
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67 C10 Stepside 66 Mustang Coupe 99 Burb 2500 |
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#2 |
Registered User
![]() Join Date: Jul 2009
Location: Houston, Tx
Posts: 1,133
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Re: Fuel Line / Sending Unit ?'s
I think you will be okay on a stock 350
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1972 SWB Medium Olive South Houston Instagram: Antbish84 |
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#3 |
The Older Generation
![]() ![]() ![]() Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,518
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Re: Fuel Line / Sending Unit ?'s
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I run 5/16 with my 454 with no problems. The engine is stock and I don't hot rod it much... ![]() LockDoc
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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#4 |
Retired Air Force Veteran
![]() Join Date: Aug 2007
Location: Pembroke Pines, Florida 33024
Posts: 1,808
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Re: Fuel Line / Sending Unit ?'s
My 69, originally had an I-6 and was swapped to a 350 by the previous owner, the lines on my truck were 3/8" (I'm guessing he changed them to 3/8") I went with steel braided lines on the topside and about 24" of steel braid from the mechanical fuel pump to the in cab tank and used the existing hard line the rest of the way. I purchased a new sending unit in my build. I purchased it from Brothers Trucks - http://www.brotherstrucks.com/products.asp?dept=959
and the V8 size was a 3/8" fitting. See the 5th one down on the brothers link, it shows that it can be used on 6cyl. but a reducer is needed. For your V8 setup, I think your fuel line may be needed to change to 3/8"
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Harry 69' SWB Step Side 1/2 Ton w/68' Front Clip Swap from Leafs to Trailing Arms (Complete) Swap 6 Lug to 5 Lug (w/ Disk Brakes in Front) 3/6 Drop ![]() Help Support The Board Click Here For Information On How To Subscribe Krue's FAQ Page Vendors |
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#5 |
Retired Air Force Veteran
![]() Join Date: Aug 2007
Location: Pembroke Pines, Florida 33024
Posts: 1,808
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Re: Fuel Line / Sending Unit ?'s
Leon, are you running an in cab tank or under frame tank?
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Harry 69' SWB Step Side 1/2 Ton w/68' Front Clip Swap from Leafs to Trailing Arms (Complete) Swap 6 Lug to 5 Lug (w/ Disk Brakes in Front) 3/6 Drop ![]() Help Support The Board Click Here For Information On How To Subscribe Krue's FAQ Page Vendors |
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#6 |
Registered User
Join Date: Mar 2010
Location: Pueblo West, CO
Posts: 944
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Re: Fuel Line / Sending Unit ?'s
Thanks guys. I was debating on buying a flaring tool and making my own fuel line with the 3/8th. That way I can make my own transmission lines too. Anybody done that and is it worth the time it takes rather than buying new?
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67 C10 Stepside 66 Mustang Coupe 99 Burb 2500 |
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#7 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: Fuel Line / Sending Unit ?'s
i'd inspect the whole length of the line first if no rust issues i'd keep the 5/16 but if a replacement is due i'd go for the 3/8 stuff
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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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#8 |
Junior Member
![]() Join Date: Jun 2007
Location: China Grove, NC
Posts: 122
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Re: Fuel Line / Sending Unit ?'s
My 67 actually had a 5/16 line with the factory 327. I figured it out when I ordered the V-8 sender and it didn't fit. The only thing I can figure is the factory would install whatever they had laying around. You should be OK; I've got a mild cam and a 4bbl and I've never experienced any fuel starvation issues.
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"A man's got to know his limitations." - Dirty Harry _______________________________________________ 1967 C20 Custom Camper, 327, Powerglide, PS, PB, No-Spin Locker |
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#9 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: Fuel Line / Sending Unit ?'s
a 2 bbl carb'd small block would have come with 5/16ths line.
If you are running a stock, or even an almost stock engine, and not running it at 4000+ RPM all the time, then you'll be fine. |
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