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

Q-jet questions...

Thread Tools
 
Search this Thread
 
Old Sep 3, 2007 | 06:01 PM
  #1  
jim2527's Avatar
jim2527
Thread Starter
Race Director
20 Year Member
Liked
Top Answer: 1
Top Answer: 3
 
Joined: Apr 2003
Posts: 19,350
Likes: 654
From: Tampa, Florida
Default Q-jet questions...

I'm looking around for a nice donor carb to rebuilt to 1970 350 specs.

As long as the fuel inlet is the side style does it really matter what its off? I've found a suitable carb with an electric choke but its from a '79 Caddy. Is there anything wring with truck Q-jets?
Reply
Old Sep 3, 2007 | 08:45 PM
  #2  
Bob Onit's Avatar
Bob Onit
Melting Slicks
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2006
Posts: 3,342
Likes: 7
From: Connecticut
Default

Originally Posted by jim2527
I'm looking around for a nice donor carb to rebuilt to 1970 350 specs.

As long as the fuel inlet is the side style does it really matter what its off? I've found a suitable carb with an electric choke but its from a '79 Caddy. Is there anything wring with truck Q-jets?
Truck Q jets are not a good choice for the Corvette engine.

I learned this from Lars
"Jetting and setup is completely different from passenger car application due to the intended low-speed design of the venturies."
Reply
Old Sep 3, 2007 | 08:53 PM
  #3  
Tim H's Avatar
Tim H
Safety Car
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2000
Posts: 3,593
Likes: 103
From: Southern Indiana
Default

I think you need one off a Chevy so the gas pedal and passing gear hooks up easy.
Olds, Pontiac, and Buick have the passing gear cable going to the gas pedal so the carb won't have the hook up.
The most thought will be in the jets and primary rods.
You just have to see what you get and then go from there.
The 75 up carbs primary rods aren't reproduced yet so you will have to hunt for some doners.
Reply
Old Sep 3, 2007 | 10:31 PM
  #4  
sxr6's Avatar
sxr6
Pro
10 Year Member
 
Joined: Nov 2004
Posts: 575
Likes: 0
From: Nice Lake Ontario
Default

Originally Posted by Bob Onit
Truck Q jets are not a good choice for the Corvette engine.
Second that!

I have a unused fresh rebuilt quad off a 70 350 Camaro I'm sure we could make a deal on. If interested PM me for carb number etc
Reply
Old Sep 4, 2007 | 08:44 AM
  #5  
jim2527's Avatar
jim2527
Thread Starter
Race Director
20 Year Member
Liked
Top Answer: 1
Top Answer: 3
 
Joined: Apr 2003
Posts: 19,350
Likes: 654
From: Tampa, Florida
Default

Originally Posted by sxr6
Second that!

I have a unused fresh rebuilt quad off a 70 350 Camaro I'm sure we could make a deal on. If interested PM me for carb number etc
Thanks for the offer but I'm going to pass. I'm looking for a later M4M that has/or can be converted to an electric choke.

Jim
Reply

Get notified of new replies

To Q-jet questions...





All times are GMT -4. The time now is 05:01 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE