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

Help Please Ls Swap

Thread Tools
 
Search this Thread
 
Old Feb 25, 2016 | 10:32 PM
  #1  
Csperling's Avatar
Thread Starter
Teching In
 
Joined: Feb 2016
Posts: 3
Likes: 0
Default Help Please Ls Swap

Hello, my name is Connor and i am new to this forum.

I Am doing my first Ls swap in my 1966 Chevy pick up with a 4 speed manual trans. I really could use help on some dues and dont's. I did build a stand alone harness and it is ready to go. The motor is a 5.3 Vortec out of an 03 Tahoe. i REALLY could use help on this return fuel system for my truck, right now it is just a simple non-return system, so I am at a total loss.

Thank you guys!!!
Reply
Old Feb 26, 2016 | 06:48 PM
  #2  
SS69LS1's Avatar
On The Tree
iTrader: (108)
 
Joined: Jul 2006
Posts: 194
Likes: 3
From: Pensacola, FL
Default

Use a C5 corvette fuel filter. It has an internal regulator and a return port. I highly suggest using an in tank fuel pump, not an external pump. Mount the C5 filter near your fuel tank, and run a return line from the filter back to the tank. Looking forward to see your build.
Reply
Old Feb 28, 2016 | 08:58 PM
  #3  
Csperling's Avatar
Thread Starter
Teching In
 
Joined: Feb 2016
Posts: 3
Likes: 0
Default

Thank you SS69LS1 , would you happen to know to know a place to get one? And any suggestion on what type of internal fuel pump I could use?
Reply
Old Feb 28, 2016 | 09:38 PM
  #4  
SS69LS1's Avatar
On The Tree
iTrader: (108)
 
Joined: Jul 2006
Posts: 194
Likes: 3
From: Pensacola, FL
Default

I use either napa or the dealer. There are some cheap knock offs out there. My local NAPA usually has one in stock. I have not seen a vehicle specific efi tank for your truck, but its possible you could use an efi fuel cell mounted between the frame rails under the rear area of the bed. I have seen a 69 camaro tank used as well, with the filler neck coming out behind the license plate.
Reply
Old Feb 29, 2016 | 11:42 AM
  #5  
Csperling's Avatar
Thread Starter
Teching In
 
Joined: Feb 2016
Posts: 3
Likes: 0
Default

Thank you!! So do you think I could use and 03 Tahoe internal fuel pump? Even if the fuel tank is right behind my seat?
Reply
Old Mar 1, 2016 | 02:00 PM
  #6  
SS69LS1's Avatar
On The Tree
iTrader: (108)
 
Joined: Jul 2006
Posts: 194
Likes: 3
From: Pensacola, FL
Default

I would get the right tank with the right pump, in the right place (NOT behind the seat). This will eliminate chasing fuel system problems, performance problems, fuel starvation, AND keep you safe in the event of an accident/fire etc. This is one place not to go the cheap route.
Reply
Old Mar 8, 2016 | 05:22 AM
  #7  
Bob@BruteSpeed's Avatar
LS1Tech Sponsor
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Liked
iTrader: (16)
 
Joined: Mar 2003
Posts: 21,020
Likes: 35
From: Roanoke, IN
Thumbs up

Originally Posted by Csperling
Hello, my name is Connor and i am new to this forum.

I Am doing my first Ls swap in my 1966 Chevy pick up with a 4 speed manual trans. I really could use help on some dues and dont's. I did build a stand alone harness and it is ready to go. The motor is a 5.3 Vortec out of an 03 Tahoe. i REALLY could use help on this return fuel system for my truck, right now it is just a simple non-return system, so I am at a total loss.

Thank you guys!!!
You are in the newer Gen V LT1 section. You'll get more responses in the LS section. Bob
__________________
ATI ProCharger and Moser Sales 260 672-2076

PM's disabled, please e-mail me
E-mail: brutespeed@gmail.comob@brutespeed.com

https://brutespeed.com/ Link to website


Reply
Old Mar 9, 2016 | 09:27 AM
  #8  
65gregg's Avatar
Teching In
 
Joined: May 2012
Posts: 27
Likes: 0
Default

I used this in my 65, it's a 53-54 Chevy passenger car from Tanks inc. it's already baffed and set up for a drop in pump.
Attached Thumbnails Help Please Ls Swap-image.jpeg  
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

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

 Pouria Savadkouei
story-6

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

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo




All times are GMT -5. The time now is 03:02 PM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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