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

Header Install Tips??

Thread Tools
 
Search this Thread
 
Old Jul 1, 2010 | 11:56 AM
  #1  
VancouverMark's Avatar
VancouverMark
Thread Starter
Advanced
 
Joined: Apr 2010
Posts: 74
Likes: 0
From: Vancouver British Columbia
Default Header Install Tips??

I am going to be installing my headers this weekend and wondering if there are any tips to safely remove my Ram Horn Manifolds...heat? penetrating oil? And any tricks for the instal of the new headers? Tricks with the gaskets? I am using th new Remflex Gaskets. I have header bolts, should I use lock washers? Torque specs?
Reply
Old Jul 1, 2010 | 12:29 PM
  #2  
C3 4ME's Avatar
C3 4ME
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2005
Posts: 6,247
Likes: 471
From: Glen Allen, VA
Default

First you should have already been soaking the bolts with PB Blaster or the like. I'd soak every one real good every day for a week ahead of time. I've removed and installed my headers and it wasn't that hard. I have a 79 (small block of course) 4 spd. I had to remove the starter and on the driver's side, the clutch Z bar and one spark plug if I remember right. Both sides went in from underneath.
Reply
Old Jul 1, 2010 | 12:35 PM
  #3  
FRSTR90's Avatar
FRSTR90
Drifting
10 Year Member
 
Joined: Apr 2007
Posts: 1,892
Likes: 3
From: Springfield Illinois
Default

There's really nothing to it.. unbolt your exhaust then unbolt the ram horns. It probably wouldn't hurt to hit it with some penetrating oil the night before. When installing the headers , I put anti-seize on the bolts, put the 2 outer most bolt in first, slide the gasket in, snug those 2 bolts, put the rest of the bolts in, then tighten all of the bolts.

Header bolts are usually included with the headers.. if they come with washers use them. if not, then leave them out. Some bolts are designed not to be used with washers.

Torque spec I believe is 20 ft-lb.
Reply
Old Jul 1, 2010 | 12:45 PM
  #4  
MotorHead's Avatar
MotorHead
Race Director
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2000
Posts: 17,672
Likes: 199
From: Who says "Nothing is impossible" ? I've been doing nothing for years.
Default

Soak the old rams horn bolts in penetrating oil. The new headers go in from the bottom. I have an '80 and after I jack the passenger side up a bit there is one angle that usually takes me a few minutes to find where the headers will fit in without taking the starter off.

If it's your first time and can't find this angle, where the header is almost vertical, then take the starter out. Remember to just get the two end end header bolts threaded a few threads then put the starter in, this way you will have more room as you can swing the header out an inch or two.

Also remember these headers ain't gonna hookup to you existing exhaust. If you know how to weld it's non issue but if not you might have to fab up a piece of flex pipe to get it to the muffler shop, some have done it with open headers and knowing how on the ball the RCMP are out there and exactly where you live you could probably do that no problems. If you work for the RCMP I was only kidding
Reply
Old Jul 1, 2010 | 01:00 PM
  #5  
VancouverMark's Avatar
VancouverMark
Thread Starter
Advanced
 
Joined: Apr 2010
Posts: 74
Likes: 0
From: Vancouver British Columbia
Default

Hahahahaha, nope I am no RCMP !
I forgot to mention I have a garage with a Pit !!! (it's my Father inlaws) I have the reducers which I hope to be able to make a coupler to fit the existing pipes. Changing out the mufflers to Magnaflows. keeping the piping since it is only a year or two old
Reply
Old Jul 1, 2010 | 01:11 PM
  #6  
SPD151's Avatar
SPD151
Heel & Toe
 
Joined: Mar 2008
Posts: 23
Likes: 0
From: West Columbia SC
Default Problem I ran into

I installed the Hooker Super Comps on my 75 and ended up having an issue with the rag joint on the steering hitting the headers. This was really the only thing I ran into however.
Reply
Old Jul 1, 2010 | 02:21 PM
  #7  
tfi racing's Avatar
tfi racing
Drifting
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jan 2006
Posts: 1,831
Likes: 36
From: Cedar,BC
Default

Chances of getting a torque wrench on most of those bolts is slim to none,jsut try to be as consistent as possible...You will be re-tightening them a few times after the first few heating cycles,a good trick is to sacrifice one of your shorter 7/16 wrenches by grinding the metal on the closed end thinner so it will clear the tighter tube/bolt areas.As MH noted,put the two end bolts in loosely,most gaskets are notched so that those two bolts will hold it in place as you try to get the rest of the bolts in.
Reply
Old Jul 1, 2010 | 02:50 PM
  #8  
toddalin's Avatar
toddalin
Le Mans Master
25 Year Member
Liked
Loved
Top Answer: 3
 
Joined: Oct 2000
Posts: 8,897
Likes: 1,353
From: Santa Ana CA
Default

I hope you have a lift.
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 Jul 1, 2010 | 02:59 PM
  #9  
VancouverMark's Avatar
VancouverMark
Thread Starter
Advanced
 
Joined: Apr 2010
Posts: 74
Likes: 0
From: Vancouver British Columbia
Default Lift

Originally Posted by toddalin
I hope you have a lift.
Even better, I have a full length pit! With lights and power!
Reply
Old Jul 2, 2010 | 09:17 AM
  #10  
glen242's Avatar
glen242
Melting Slicks
15 Year Member
 
Joined: Apr 1999
Posts: 2,010
Likes: 3
From: Moon Twp. PA USA
Default

I have used Stage 8 locking bolts on my small block, with headers, for about 7 years on the 350 and about 4 years on the 383.

Never had a bolt loosen up or an exhaust gasket blow.

I use FelPro gaskets.
Reply

Get notified of new replies

To Header Install Tips??





All times are GMT -4. The time now is 12:46 PM.

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