The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain > LSx Swaps

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 06-17-2013, 02:36 PM   #1
truckdude239
Senior Member
 
truckdude239's Avatar
 
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,237
how to hook up gas-tank lines

whats the best way to hook these up?
Attached Images
 
__________________
David fuller
Ase Certified Mechanic
Click here to help support our board!!


1971 Chevy c-10 under going a 4.8l LSx swap

Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305

2007 Honda Accord my daily 145kmiles
2002 Honda Accord 4 door With 330k(sisters car)
2005 toyota Avalon 228k( brothers car)
2002 Sububran 5.3 245k
2000 Tahoe 5.3l 378

General manager for Marco's Carwash & lube
truckdude239 is offline   Reply With Quote
Old 06-17-2013, 06:51 PM   #2
Robznob11
Registered User
 
Robznob11's Avatar
 
Join Date: Feb 2004
Location: brownfield texas (west texas)
Posts: 1,936
Re: how to hook up gas-tank lines

if your going to hard line get inverted flare brass connectors, and convert over to compressionon the other end. or you can use a double flare tool and put break line style fittings and just go invert to invert
__________________
The Ghost 67 short wide full custom. 550 hp LSX, 4l80E, narrowed 9". Body dropped w/air ride!
........................ ___
.........________//__{\_____
,,,,,,,/__(⊙)___//___/__(O)_/

@disciple2.rc 💪instagram💪
LED TAILS
Robznob11 is offline   Reply With Quote
Old 06-17-2013, 07:56 PM   #3
BR3W CITY
meowMEOWmeowMEOW
 
BR3W CITY's Avatar
 
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
Re: how to hook up gas-tank lines

Cut them off, and flare on regular inverted flare brake line fittings. You can then run hard line 90% of the way up. On the engine side, it depends if you'll be using braided line or just using the budget fi rubber line.
__________________
'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING

MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD
BR3W CITY is offline   Reply With Quote
Old 06-17-2013, 09:38 PM   #4
truckdude239
Senior Member
 
truckdude239's Avatar
 
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,237
Re: how to hook up gas-tank lines

well i need to run far enough out for my corvet filter and reg tehn hard line the rest of the way
__________________
David fuller
Ase Certified Mechanic
Click here to help support our board!!


1971 Chevy c-10 under going a 4.8l LSx swap

Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305

2007 Honda Accord my daily 145kmiles
2002 Honda Accord 4 door With 330k(sisters car)
2005 toyota Avalon 228k( brothers car)
2002 Sububran 5.3 245k
2000 Tahoe 5.3l 378

General manager for Marco's Carwash & lube
truckdude239 is offline   Reply With Quote
Old 06-17-2013, 11:14 PM   #5
truckdude239
Senior Member
 
truckdude239's Avatar
 
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,237
Re: how to hook up gas-tank lines

Do they need to be double flare or will single flares be okay? Im runninv a ep381 ac delo pump
Posted via Mobile Device
__________________
David fuller
Ase Certified Mechanic
Click here to help support our board!!


1971 Chevy c-10 under going a 4.8l LSx swap

Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305

2007 Honda Accord my daily 145kmiles
2002 Honda Accord 4 door With 330k(sisters car)
2005 toyota Avalon 228k( brothers car)
2002 Sububran 5.3 245k
2000 Tahoe 5.3l 378

General manager for Marco's Carwash & lube
truckdude239 is offline   Reply With Quote
Old 06-18-2013, 09:49 AM   #6
Wasted Income
Boosted Member
 
Wasted Income's Avatar
 
Join Date: May 2002
Location: Mackinaw, IL
Posts: 2,200
Re: how to hook up gas-tank lines

Cut them off and use a compression to AN fitting.
__________________
1972 2wd K/5 Blazer Turbocharged 370 LSx - 941 rwhp / 1093 rwtq
1969 Chevy K-10 L33 5.3 / 4L80E / NP241 / 4" lift
1964 Buick Skylark Twin TURBO 383 LS pro-touring project
2014 VW Passat TDI - Daily Driver
Turbo diesel
2015 Sierra Denali HD Duramax Turbo diesel
2023 Ford Explorer ST - Twin Turbskis
2023 Ford F150 RCSB - Whipple Supercharged
2017 Polaris RZR Turbo
2014 Nor-Tech Center Console - Twin Supercharged Outboards

TURBO ALL THE THINGS!!
Wasted Income is offline   Reply With Quote
Old 06-18-2013, 11:29 AM   #7
BR3W CITY
meowMEOWmeowMEOW
 
BR3W CITY's Avatar
 
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
Re: how to hook up gas-tank lines

Wait....your running a vetter regulator? Are you running the car intake then?
Your sig says a 4.8, which would be return style and not need the vette reg (unless its newer than 05?)

Double flare never hurts but I've run single flare on fuel systems before without any problem. Its under 100psi so its not like the braking systems at 2k+
__________________
'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING

MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD
BR3W CITY is offline   Reply With Quote
Old 06-18-2013, 11:34 AM   #8
truckdude239
Senior Member
 
truckdude239's Avatar
 
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,237
Re: how to hook up gas-tank lines

this is whati have out of a 2004 silverado


http://67-72chevytrucks.com/vboard/s...d.php?t=577190
Attached Images
 
__________________
David fuller
Ase Certified Mechanic
Click here to help support our board!!


1971 Chevy c-10 under going a 4.8l LSx swap

Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305

2007 Honda Accord my daily 145kmiles
2002 Honda Accord 4 door With 330k(sisters car)
2005 toyota Avalon 228k( brothers car)
2002 Sububran 5.3 245k
2000 Tahoe 5.3l 378

General manager for Marco's Carwash & lube
truckdude239 is offline   Reply With Quote
Old 06-18-2013, 10:08 PM   #9
68c10airstream
Registered User
 
68c10airstream's Avatar
 
Join Date: Mar 2013
Location: Marquette michigan
Posts: 828
Re: how to hook up gas-tank lines

Hi david, i went to the junkyard and got the quick connect fittings at the intake area, cut the rubber line as far back as possible, used edelmann brass fitings that have a nice bulbous end on it, fuel injection specific clamps, bent my own lines with inverted flare like brake lines are, i used my mastercool hydralic flaring tool to make o'ring fittings for a gm fuel filter, and someone makes (maybe inline tube) an adapter to go from male oring to male oring at your sender area. Gm made that fitting on an 88 long box 4 door truck to extend their lines so i had that for a long time. I steered away from AN fittings after a couple friends have had repeated leak issues. When they saw my truck they asked me what i did for lines and said i made it like gm did, after hearing their horror stories (almost a fire) etc. I feel that a room full of gm engineers working together to produce lines that don,t leak, have to stand up to crash tests, overpressure bursting tests, emissions compliance, etc was good enough for me. I don't need fancy anodized fittings that are expensive and take special aluminum wrenches so i don't hurt them, etc. I worked as a dealer mechanic for 30 plus years and other than corrosion from road salt finally getting to them i never saw a leak. My 2 friends can't say the same. Oh david, you don't have a relative by the nickname of skip fuller do you? maybe 80ish years old? Let me know and good luck, Brian Fuller
68c10airstream is offline   Reply With Quote
Old 06-19-2013, 02:29 AM   #10
truckdude239
Senior Member
 
truckdude239's Avatar
 
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,237
Re: how to hook up gas-tank lines

Nope not that i know of no skip
Posted via Mobile Device
__________________
David fuller
Ase Certified Mechanic
Click here to help support our board!!


1971 Chevy c-10 under going a 4.8l LSx swap

Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305

2007 Honda Accord my daily 145kmiles
2002 Honda Accord 4 door With 330k(sisters car)
2005 toyota Avalon 228k( brothers car)
2002 Sububran 5.3 245k
2000 Tahoe 5.3l 378

General manager for Marco's Carwash & lube
truckdude239 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 12:51 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com