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12-18-2008, 10:07 PM
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#1 |
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"brand new second-hand"
Join Date: Feb 2007
Location: White House, Tennessee
Posts: 526
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1969 big block fuel line size
I recently installed a 468 big block in my 69 c-20, and my question is is there a dirrerence in the size of big block fuel line from the tank to the pump vs a small block? I saw an ad that says 3/8 was the size for factory big block but I can't back it up. I also installed a new rearend from a 1986 3/4 ton truck that has a 3:23 gear. This is a 14 bolt but not the heavy duty (dana 70) type-anyone run this rearend with any problems? Thanks Steve
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Steve 69 3/4t custom camper tilt,am/fm,speed warning,air gauge,buddy buckets,aux battery, big block,p/s,p/b,a/c 67 Camaro 96 Impala ss-sold 04 hybrid Honda-saving gas for the blue truck!:b69: |
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12-18-2008, 10:17 PM
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#2 | |
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Chevy nut
Join Date: Jun 2007
Location: Springfield, Illinois
Posts: 2,266
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Re: 1969 big block fuel line size
Quote:
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84 Chevy Custom Deluxe 1/2 Ton Named Fade To Black II "Remember kids there is NO replacement for displacement!" |
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12-19-2008, 12:48 AM
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#3 |
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Registered User
Join Date: Sep 2005
Location: Canton North carolina
Posts: 3,081
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Re: 1969 big block fuel line size
3/8 ths here as well, but I think that was common for all V8 trucks, while 6's got 5/16 lines
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67 blue step side- bb 68 gold and white swb cst anniversary 68 custom swb hot rod Ls swap 69 swb cst 6 cylinder/ overdrive 69 black/black cst bb swb 70 orange and white cst Canada built truck swb bb 71 black and white super swb bb 71 red and white super swb 72 green and white super swb 4x4 62 nova wagon 400 series Ls swapped 68 Camaro 327/4 speed- 1 owner, original paint 66 Volkswagen bettle 69 auto stick Volkswagen Beetle |
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12-20-2008, 04:19 PM
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#4 |
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"Trucks with Class"
 
Join Date: Jul 2000
Location: OLYMPIA, WA, USA
Posts: 8,139
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Re: 1969 big block fuel line size
3/8s was original on 350 & BBs and should feed your engine fine...IF there are no restrictions. Check the fuel line from tank to carb to make sure there are no kinks or crimped spots. Look inside all your fittings, especially if any are non-stock. Some of these fittings & fuel blocks are too small inside. Check the fuel sock inside the tank, too.
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12-21-2008, 12:18 AM
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#5 |
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"brand new second-hand"
Join Date: Feb 2007
Location: White House, Tennessee
Posts: 526
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Re: 1969 big block fuel line size
thanks-never thought of the fuel sock in the tank..
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Steve 69 3/4t custom camper tilt,am/fm,speed warning,air gauge,buddy buckets,aux battery, big block,p/s,p/b,a/c 67 Camaro 96 Impala ss-sold 04 hybrid Honda-saving gas for the blue truck!:b69: |
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