C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

1971 LT1 Fuel Return Line

Thread Tools
 
Search this Thread
 
Old Apr 21, 2023 | 05:33 PM
  #1  
C3-LT1's Avatar
C3-LT1
Thread Starter
Instructor
Conversation Starter
All Eyes On Me
 
Joined: Jul 2022
Posts: 201
Likes: 37
From: White Bear Lake, MN
Default 1971 LT1 Fuel Return Line

Where does the fuel return line connect to the gas tank?
Reply
Old Apr 21, 2023 | 08:54 PM
  #2  
dan1495's Avatar
dan1495
Burning Brakes
20 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Jan 2006
Posts: 1,072
Likes: 331
From: Clear Lake Shores Texas
2016 C3 of Year Finalist
Default

Unless I’m misreading the question a 71 LT-1 doesn’t have a return fuel line.
Reply
Old Apr 21, 2023 | 09:50 PM
  #3  
Mooser's Avatar
Mooser
Race Director
10 Year Member
 
Joined: Apr 2011
Posts: 11,183
Likes: 3,335
From: North of Toronto - Ontario
Default


No return on the LT1 (one of the few engines that didn't get one)

But return lines, when used went in near the top of the tank on the passenger side


M
Reply
Old Apr 21, 2023 | 10:33 PM
  #4  
Arg0413's Avatar
Arg0413
Drifting
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2015
Posts: 1,440
Likes: 1,031
From: Baton Rouge Louisiana
Default

There is no return - but you could do two things if you want a return:
  1. buy a normal C3 fuel tank with a return inlet and connect there.
  2. Use the Emissions EVAP port on the passenger side of the LT-1 tank to connect the return and use a vented gas cap
Reply
Old Apr 22, 2023 | 01:22 PM
  #5  
C3-LT1's Avatar
C3-LT1
Thread Starter
Instructor
Conversation Starter
All Eyes On Me
 
Joined: Jul 2022
Posts: 201
Likes: 37
From: White Bear Lake, MN
Default

That's what I thought but the Factory Assembly Manual and the FSM both show one. Since the LT1 and gas tank, though, are specific to the LT1 I just wanted to make sure that I wasn't missing something. Perhaps the above two manuals are for all 1971's in general and don't differentiate between those and the LT1's.

Thanks for the confirmation.

Jim
Reply
Old Apr 22, 2023 | 02:11 PM
  #6  
Mooser's Avatar
Mooser
Race Director
10 Year Member
 
Joined: Apr 2011
Posts: 11,183
Likes: 3,335
From: North of Toronto - Ontario
Default

The AIM should have a separate section at the back which would detail any of the items that were specific to the LT1. (Sorry, I don't have a 70 or 71 AIM available to look at)
M
Reply

Get notified of new replies

To 1971 LT1 Fuel Return Line





All times are GMT -4. The time now is 06:15 PM.

story-0
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-1
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-2
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-3
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-4
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-5
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-6
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-7
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-8
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-9
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE