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

Uneven Hooker Sidepipes

Thread Tools
 
Search this Thread
 
Old Aug 5, 2009 | 05:53 PM
  #1  
C3HOONIGAN's Avatar
C3HOONIGAN
Thread Starter
Instructor
 
Joined: Apr 2008
Posts: 173
Likes: 1
From: Stowe Vermont
Default Uneven Hooker Sidepipes

So I just installed a set of hooker sidepipes on my 74 vette. The sidetubes aren't on, just the headers. The drivers side is about 1 to 2 inches lower than the passenger side. The passenger side is rubbing slightly on the bottom of the body. Any ideas?
Reply
Old Aug 5, 2009 | 05:58 PM
  #2  
chevymans 77's Avatar
chevymans 77
Melting Slicks
Supporting Gold
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2002
Posts: 2,716
Likes: 121
From: Sulphur LA
St. Jude Donor '05-'06,'11,'13-'14,'16,'18,'19,'24, '25
Default

Originally Posted by 87blazer74vette
So I just installed a set of hooker sidepipes on my 74 vette. The sidetubes aren't on, just the headers. The drivers side is about 1 to 2 inches lower than the passenger side. The passenger side is rubbing slightly on the bottom of the body. Any ideas?
Check the motor mounts and if that isn't it check the body mounts.

Neal
Reply
Old Aug 5, 2009 | 06:00 PM
  #3  
C3HOONIGAN's Avatar
C3HOONIGAN
Thread Starter
Instructor
 
Joined: Apr 2008
Posts: 173
Likes: 1
From: Stowe Vermont
Default

if it is in fact the motor mounts, which i'm thinking it is, what can i do about that?
Reply
Old Aug 5, 2009 | 06:01 PM
  #4  
GruntyPants's Avatar
GruntyPants
Instructor
15 Year Member
 
Joined: May 2006
Posts: 223
Likes: 1
From: Kennesaw GA
Default Sidepipes

Posted at the same time...

Yes motor mounts and/or body mounts... try to measure from a common point on the engine (top of the heads to the frame rails or similar) and see if there's any difference
Reply
Old Aug 5, 2009 | 09:06 PM
  #5  
chevymans 77's Avatar
chevymans 77
Melting Slicks
Supporting Gold
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2002
Posts: 2,716
Likes: 121
From: Sulphur LA
St. Jude Donor '05-'06,'11,'13-'14,'16,'18,'19,'24, '25
Default

Originally Posted by 87blazer74vette
if it is in fact the motor mounts, which i'm thinking it is, what can i do about that?
change them, don't know how much they are but can't be to high.

Neal
Reply
Old Aug 5, 2009 | 09:17 PM
  #6  
C3HOONIGAN's Avatar
C3HOONIGAN
Thread Starter
Instructor
 
Joined: Apr 2008
Posts: 173
Likes: 1
From: Stowe Vermont
Default

so it seems now that it is a side to side difference rather than an up and down. One side is about an inch further out than the other. Rear motor mount?
Reply
Old Aug 6, 2009 | 02:07 PM
  #7  
kunkle's Avatar
kunkle
Racer
 
Joined: Feb 2009
Posts: 265
Likes: 0
Default

Originally Posted by 87blazer74vette
so it seems now that it is a side to side difference rather than an up and down. One side is about an inch further out than the other. Rear motor mount?
We have the same problem. Mine's been that way for over 10 years. Always heard 'cause the body isn't on the frame straight and it isn't unusual for a vette. If I ever get to changng the body mounts, probably try to straighten things out.

Also had to trim the inside fenders on the driver's side when I put 255's on my '71 so they wouldn't rub so much.

Last edited by kunkle; Aug 6, 2009 at 02:09 PM.
Reply
Old Aug 6, 2009 | 02:23 PM
  #8  
auavette's Avatar
auavette
Instructor
 
Joined: Mar 2009
Posts: 132
Likes: 0
From: Cumana
Default

The same thing happened to me when I installed side pipes to my 76.
The passenger side sticks out a little further, so I guess it is a common problem.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-1

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-2

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-3

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-4

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-5

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-6

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-7

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-8

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-9

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
Old Aug 6, 2009 | 02:42 PM
  #9  
blckslvr79's Avatar
blckslvr79
Drifting
 
Joined: Jan 2008
Posts: 1,962
Likes: 5
From: Schererville IN
Default

Mine's just the opposite. My driver side sticks out further than the passenger. Rocker panel drops right in on drivers side, but on passenger side, the header nearly touches the body!

I plan on trying to move the engine in the mounts before I cut up the rocker panels.
Reply
Old Aug 6, 2009 | 03:27 PM
  #10  
kunkle's Avatar
kunkle
Racer
 
Joined: Feb 2009
Posts: 265
Likes: 0
Default

Originally Posted by blckslvr79
Mine's just the opposite. My driver side sticks out further than the passenger. Rocker panel drops right in on drivers side, but on passenger side, the header nearly touches the body!

I plan on trying to move the engine in the mounts before I cut up the rocker panels.
Don't see how one could move the engine in the mounts w/o cutting, grinding and welding........

On the rocker panel side of things....I left off the rocker panels (after I already had cut them up some time ago to fit the first set of chrome- have powder coated now) and painted the area flat black. Something to think about if you might like the look.
Reply
Old Aug 6, 2009 | 08:34 PM
  #11  
chevymans 77's Avatar
chevymans 77
Melting Slicks
Supporting Gold
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2002
Posts: 2,716
Likes: 121
From: Sulphur LA
St. Jude Donor '05-'06,'11,'13-'14,'16,'18,'19,'24, '25
Default

Originally Posted by 87blazer74vette
so it seems now that it is a side to side difference rather than an up and down. One side is about an inch further out than the other. Rear motor mount?
Did you change anything to fix the up and down issue? The motor is not centered in the car. Its set to the passenger side about 1.5", not sure but I would think that Hooker would have adjusted for this. I didn't have this issue with mine but I'm running a BB so It may be different.

Neal
Reply

Get notified of new replies

To Uneven Hooker Sidepipes





All times are GMT -4. The time now is 08:54 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE