Conversions & Swaps LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

5.3 fuel rail with return

Thread Tools
 
Search this Thread
 
Old Oct 22, 2008 | 06:35 PM
  #1  
markarleta1's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2007
Posts: 75
Likes: 0
Default 5.3 fuel rail with return

has any one installed a 5.3 with a return in there project?
Reply
Old Oct 22, 2008 | 06:40 PM
  #2  
68shortstep's Avatar
TECH Regular
20 Year Member
iTrader: (1)
 
Joined: Oct 2005
Posts: 439
Likes: 0
From: tulsa OK
Default

yes, i have
Reply
Old Oct 22, 2008 | 07:02 PM
  #3  
markarleta1's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2007
Posts: 75
Likes: 0
Default

how did you plumb your fuel? where does the vaccumm from the fuel pressure reg go?
Reply
Old Oct 22, 2008 | 08:55 PM
  #4  
68shortstep's Avatar
TECH Regular
20 Year Member
iTrader: (1)
 
Joined: Oct 2005
Posts: 439
Likes: 0
From: tulsa OK
Default

i used braided steel line (-6) for both the feed and return. the connections are a assortment of streight,90's,and unions. for the " dummy proof factor" normal red and blue AN fittings are for the feed, and black are for the return. attaching the fuel rail i used summit fuel rail fittings for gm ls1. i made a connection at the fuel tank so i can remove it if i need to. you can do something similier with tube to an fittings (last pic) o yea the filter is earls -6 on both ends.... as for the clamps they are padded rubber line clamps.
Name:  100_1108.jpg
Views: 10528
Size:  45.1 KB
Name:  100_1109.jpg
Views: 10817
Size:  61.0 KB
Name:  100_1110.jpg
Views: 10567
Size:  59.3 KB
Name:  100_1186.jpg
Views: 10608
Size:  112.2 KB
Name:  100_1185.jpg
Views: 10500
Size:  98.8 KB
Name:  100_1184.jpg
Views: 10350
Size:  62.3 KB
Reply
Old Oct 22, 2008 | 08:56 PM
  #5  
68shortstep's Avatar
TECH Regular
20 Year Member
iTrader: (1)
 
Joined: Oct 2005
Posts: 439
Likes: 0
From: tulsa OK
Default

and the vacuum port on top of the intake goes to the FPR



Name:  100_1645.jpg
Views: 23143
Size:  105.8 KB
Reply
Old Oct 23, 2008 | 01:35 PM
  #6  
MalibuRacing's Avatar
Staging Lane
iTrader: (1)
 
Joined: Nov 2005
Posts: 62
Likes: 0
From: Huntsville, Alabama
Default

I used Russell Performance fittings to convert to #6 AN on the feed and return line. P/N 640850 for the 3/8" feed line and P/N 640860 for the 5/16" return line. Then connected to #6 AN female barbed fittings to "Push-Lok" hose to the fuel tank. See below:



You can also see in the picture where the regulator vacuum line is connected in the picture above.

Good luck,
Reply
Old Oct 23, 2008 | 10:34 PM
  #7  
cooljoe57's Avatar
Teching In
 
Joined: Oct 2008
Posts: 9
Likes: 0
Default

What did you guys do with the third line that comes from the motor? I believe it is the evap line.
Reply
Old Oct 23, 2008 | 11:06 PM
  #8  
68shortstep's Avatar
TECH Regular
20 Year Member
iTrader: (1)
 
Joined: Oct 2005
Posts: 439
Likes: 0
From: tulsa OK
Default

pluged it
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-4

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-5

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
Old Oct 27, 2008 | 04:01 PM
  #9  
MalibuRacing's Avatar
Staging Lane
iTrader: (1)
 
Joined: Nov 2005
Posts: 62
Likes: 0
From: Huntsville, Alabama
Default

Yep, plugged mine. The guy that did my harness removed the wires and codes from the PCM. Kinda' rigged, but I used a hacksaw to cut the evap coil then used a screw with sealer to plug the hole. See picture below:
Reply
Old Oct 30, 2008 | 06:14 PM
  #10  
markarleta1's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2007
Posts: 75
Likes: 0
Default

how do you use the push lok hose?
Reply
Old Oct 30, 2008 | 08:44 PM
  #11  
68shortstep's Avatar
TECH Regular
20 Year Member
iTrader: (1)
 
Joined: Oct 2005
Posts: 439
Likes: 0
From: tulsa OK
Default

it simply pushes on and locks.... not tools needed
Reply
Old Oct 30, 2008 | 08:57 PM
  #12  
markarleta1's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2007
Posts: 75
Likes: 0
Default

68shortstep, you seem veryexperienced in this maybe you can help me i have a 64 malibu with a 5.3 instaled and a 5/16" line. how do you recomend me to plumb it?
Reply
Old Oct 31, 2008 | 05:29 PM
  #13  
68shortstep's Avatar
TECH Regular
20 Year Member
iTrader: (1)
 
Joined: Oct 2005
Posts: 439
Likes: 0
From: tulsa OK
Default

a 5/16 line on the fuel???
id highly recomend you step-up to a 3/8 line on the fuel, a 5/16 id think would cause you to run lean..... and id get the push lock connectors (if you can find them) or get a 5/16 hard line to -6 fitting (for the return side) and a 3/8 to -6 (on the feed side).....then somewhere in the feed line before the fuel rail and after the fuel pump, install a fuel filter.....its not all that hard, but the fittings can be a bit confuseing....if you have anymore ?s just ask or PM me and ill help ya out the best i can.
Reply
Old Mar 9, 2019 | 05:29 AM
  #14  
camarozz383's Avatar
Launching!
15 Year Member
Photogenic
Photoriffic
Liked
iTrader: (3)
 
Joined: Sep 2009
Posts: 295
Likes: 0
From: newfoundland canada
Default Fittings

Originally Posted by 68shortstep
and the vacuum port on top of the intake goes to the FPR



Attachment 622758
What part number are the an fittings thanks
Reply
Old Mar 9, 2019 | 07:24 AM
  #15  
Old Geezer's Avatar
TECH Senior Member
iTrader: (3)
 
Joined: Jun 2004
Posts: 5,639
Likes: 71
From: GA, USA
Default

Be aware: The adapter fittings at the rail, are available in 2 configs. 1 w/ the plastic retainer, that has been known to blow apart. 1 w/ a screw together retainer, that is installed w/ wrenches.
This is the one we use.
https://www.summitracing.com/ga/part...iew/?rrec=true
Reply




All times are GMT -5. The time now is 10:20 AM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE