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 > 47 - Current classic GM Trucks > The 1969 - 1972 Blazers and Jimmys Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 06-11-2018, 10:08 AM   #1
81turbota
Registered User
 
Join Date: Jul 2017
Location: Pasadena, CA
Posts: 40
Best way to run return fuel line

As part of my engine swap I need a return fuel line. Is there a different pickup or an unused vent on my current tank I can use?

Thanks!
__________________
James

1971 Blazer 350/SM465/NP205
1966 Chevelle 468/TH400
2009 Corvette Z06 built LS7
81turbota is offline   Reply With Quote
Old 06-11-2018, 10:32 AM   #2
BobbyK
Registered User
 
BobbyK's Avatar
 
Join Date: May 2000
Location: Petrolia,Ontario,Canada but working in Port Huron,Mi.
Posts: 1,717
Re: Best way to run return fuel line

When I converted to fuel injection I ran the return line down the drivers rail.
There are no unused ports on the tank. I tried using the small vent line that runs beside the large fuel fill tube but that cause fuel filling issue's.

I ended up making a "T" that went inline on the fuel fill hose. Worked great.
It's just a piece of tubing with a barbed fitting screwed into it. I put JB weld around the barbed fitting just in case. It's never leaked...and it was cheap.

I think Jeg's sells something similar though.

__________________
71 blazer,350SBC,approx.375HP,700R4,factory GM TPI.Dual electric fans,33x12.5x15 ATR on stock suspension.
Petrolia,Ontario,Canada but working in Port Huron,MI.
See ALL my Blazer pic's HERE
BobbyK is offline   Reply With Quote
Old 06-12-2018, 02:52 AM   #3
87Skier
Registered User
 
87Skier's Avatar
 
Join Date: Mar 2014
Location: Corvallis, OR
Posts: 627
Re: Best way to run return fuel line

The ideal way would be to modify the sending unit to have the return in it.

You could buy a new sender and have a welder tig a 5/16" pipe in or whatever size you want in place. There are also pass-through style fittings that you can piece together your system with.
__________________
1972 GMC Jimmy Custom 4.8L (L20)/6L90E/NP205
1989 Chevy Suburban V2500 350/Turbo 400/4.11 gears
1996 Chevy Suburban K1500 350/4L60E
87Skier is offline   Reply With Quote
Old 06-12-2018, 08:43 AM   #4
81turbota
Registered User
 
Join Date: Jul 2017
Location: Pasadena, CA
Posts: 40
Re: Best way to run return fuel line

Perfect, thanks for the ideas guys. I will be dropping the tank to clean it and replace the sender so I will likely go with the modification/welding route. BobbyK, the inline return is pretty slick. Sure saves a lot of work!
__________________
James

1971 Blazer 350/SM465/NP205
1966 Chevelle 468/TH400
2009 Corvette Z06 built LS7
81turbota is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 06:26 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.
Copyright 1997-2013 67-72chevytrucks.com