C6 Tech/Performance LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Header wrap pros and cons

Thread Tools
 
Search this Thread
 
Old Oct 11, 2007 | 10:35 AM
  #1  
nastyC6's Avatar
nastyC6
Thread Starter
Instructor
 
Joined: Aug 2005
Posts: 146
Likes: 0
From: oceanside N.Y.
Default Header wrap pros and cons

Thank you to all the forum members who responded to my post for the value of the underdrive pulley...had it installed with NO problems charging even with my battery in the rear of the car..Now another question...........Opinions on header wrapping....value???.Pros/.Cons??.....Has anyone done it on a C6........All opinions are appreciated...Thanks......NastyC6....... ...BOB
Reply
Old Oct 11, 2007 | 11:49 AM
  #2  
lemans 07's Avatar
lemans 07
Racer
 
Joined: Dec 2006
Posts: 343
Likes: 1
From: Houston TX
Default

If you are going that route, get them coated. Same general effect and alot prettier. Personally, mine are raw stainless and have not had a problem with underhood temps or burning wires, etc.
Reply
Old Oct 11, 2007 | 12:45 PM
  #3  
aTX427
Guest
 
Posts: n/a
Default

mine are coated, but I am not sure if I would do it again. I have read that if the heat does not disapate, it through the headers, it adds to the combustion temps and promotes detonation.
Reply
Old Oct 11, 2007 | 12:48 PM
  #4  
brad@JBAHEADERS's Avatar
brad@JBAHEADERS
Advanced
 
Joined: Aug 2007
Posts: 68
Likes: 0
From: San Diego CA
Default

I do not recommend wrapping your headers unless it is a race only application - and I do mean race only as in the car is a trailered race car....have the headers Jet Hot coated or going with a coated option from an aftermarket company's offering is really the best way to go on a street application - we have 2 different coatings we offer on our headers

it actually voids the warranty on our headers as well when people wrap them, some other aftermarket companies might say the same thing
Reply
Old Oct 11, 2007 | 03:13 PM
  #5  
jak112460's Avatar
jak112460
Burning Brakes
 
Joined: Sep 2003
Posts: 1,019
Likes: 4
From: az
Default

Originally Posted by brad@JBAHEADERS
I do not recommend wrapping your headers unless it is a race only application - and I do mean race only as in the car is a trailered race car....have the headers Jet Hot coated or going with a coated option from an aftermarket company's offering is really the best way to go on a street application - we have 2 different coatings we offer on our headers

it actually voids the warranty on our headers as well when people wrap them, some other aftermarket companies might say the same thing
Why is wrapping headers a problem. I would like specifics to stainless.
Reply
Old Oct 11, 2007 | 03:38 PM
  #6  
VET4LES's Avatar
VET4LES
Team Owner
10 Year Member
 
Joined: Oct 2004
Posts: 27,420
Likes: 64
From: San Clemente CA
Default

Years ago I put Doug Thorley headers on my motorhome. The warranty was void if the headers were wrapped. I think it had something to do with rust but I'm not sure.
Reply
Old Oct 11, 2007 | 03:44 PM
  #7  
ZPirate's Avatar
ZPirate
Melting Slicks
15 Year Member
Conversation Starter
All Eyes On Me
Photoriffic
 
Joined: Jan 2007
Posts: 3,120
Likes: 504
From: Greenville, NC
2025 C8 of the Year Finalist - Modified
Default

I think you would be better off with a coating such as Jet Hot as someone else said. I thought about getting my Kooks headers coated with Jet Hot 2000, but decided against it since they are stainless steel and there is room around them to let the heat disapate.
Reply
Old Oct 11, 2007 | 03:44 PM
  #8  
WHT's Avatar
WHT
Drifting
10 Year Member
 
Joined: Feb 2007
Posts: 1,537
Likes: 1
From: Southlake Texas
Default

Originally Posted by jak112460
Why is wrapping headers a problem. I would like specifics to stainless.

The tape/wrap collects moisture. This, and the heat, can degrade the welds and base stainless. Coating inside and out is better.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Joe Kucinski
story-1

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

 Verdad Gallardo
story-2

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-3

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

 Michael S. Palmer
story-4

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

 Joe Kucinski
story-5

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

 Michael S. Palmer
story-6

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

 Joe Kucinski
story-7

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-8

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-9

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
Old Oct 11, 2007 | 03:46 PM
  #9  
lemans 07's Avatar
lemans 07
Racer
 
Joined: Dec 2006
Posts: 343
Likes: 1
From: Houston TX
Default

Originally Posted by jak112460
Why is wrapping headers a problem. I would like specifics to stainless.
the headers get red hot and it can actually temper the steel and make it weaker. I have seen guys on jetboats do it and the weight of the collector caused the headers to warp and actually drop a couple inches. Too much heat for the steel.
Reply
Old Oct 11, 2007 | 04:11 PM
  #10  
DSOMC6's Avatar
DSOMC6
Race Director
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Community Builder
 
Joined: Dec 2005
Posts: 11,839
Likes: 107
From: God's Country, ID
Default

Originally Posted by lemans 07
the headers get red hot and it can actually temper the steel and make it weaker. I have seen guys on jetboats do it and the weight of the collector caused the headers to warp and actually drop a couple inches. Too much heat for the steel.


Wrap is not good for stainless LT's. Call the mfg and they will tell you.
Ceramic coating
Reply
Old Oct 11, 2007 | 06:31 PM
  #11  
brad@JBAHEADERS's Avatar
brad@JBAHEADERS
Advanced
 
Joined: Aug 2007
Posts: 68
Likes: 0
From: San Diego CA
Default

Originally Posted by jak112460
Why is wrapping headers a problem. I would like specifics to stainless.
the wrap retains heat in a way that can create excessive heat build up and stress on the primary tubes - ive seen this one as well on street cars - I actually saw a guy bang into a set of primarys with the handle of a socket wrench and the tube actually shattered right in front of him

stick with ceramic coating/jet hot coating
Reply
Old Oct 13, 2007 | 08:54 AM
  #12  
nastyC6's Avatar
nastyC6
Thread Starter
Instructor
 
Joined: Aug 2005
Posts: 146
Likes: 0
From: oceanside N.Y.
Default

Thanks for all the input on the header wrap subject.........after considering all the qualified advice .....i've decided NOT to use the header wrap......Always looking for a few more HP.....NastyC6......BOB
Reply
Old Oct 13, 2007 | 09:14 AM
  #13  
FUBUZ06AMG's Avatar
FUBUZ06AMG
FUBUZ06AMG
Supporting Lifetime Gold
 
Joined: Apr 2006
Posts: 894
Likes: 0
From: Southeast FL
Default

it's not the best looking coating, but I am going with Swain-tech Coating . If it's good enough for NASCAR it's good enough for me.

I'm going to Swain-tech both the inside and outside of the pipes.

The entire from the headers back to the cat backs, NOT the catalytic converters.

Les
Reply
Old Oct 13, 2007 | 07:57 PM
  #14  
oldmansan's Avatar
oldmansan
Safety Car
15 Year Member
 
Joined: Sep 2007
Posts: 4,359
Likes: 6
From: Los Alamitos California
St. Jude Donor '09
Default

I would also advise not wrapping headers. It doesn't last long under high heat. I would advise a good ceramic/aftermarket coating, although there are mixed opinions on coating the inside only versus inside and outside. I don't believe coating the inside would be a problem if you're staying N/A or supercharged, although turbo applications are where I'd personally only coat the outside. I also think highly of Swaintech offerings. I'm a Corvette n00b, but have run ceramic coated headers for nearly five years on a turbocharged Subaru.

San

San
Reply
Old Oct 14, 2007 | 07:24 AM
  #15  
Zig's Avatar
Zig
Safety Car
 
Joined: Dec 2004
Posts: 3,565
Likes: 5
From: stafford country, va. Avatar: Me on turn 3 @ Bristol (The World's Fastest Half-Mile)
Default

imo, wrapping isn't as good as coating, as long as you use a quality coating company (jethot, swaintech, etc.). wrap absorbs moisture, dirt, etc. coating leaves the headers looking good as new even after 20k+ miles.

i had my headers coated but i did use some wrap on the x-pipe and cat-back.
Reply
Old Dec 24, 2007 | 03:20 PM
  #16  
Michael Hunter's Avatar
Michael Hunter
Instructor
Supporting Lifetime
15 Year Member
 
Joined: Dec 2007
Posts: 247
Likes: 27
From: Edmonds WA
Default wrapping headers

I wouldn't recommend it to any one in any condition. In theory it sounds like it would add H.P. to engine, being the engine bay would be cooler. But, when the headers get hot they retain the heat and it is just like you heat treated them. On my race car they would glow and each time I ran it they went through the heat treatment until they got so brittle they cracked into pieces. Get them coated and that is it!
Reply
Old Dec 24, 2007 | 03:29 PM
  #17  
DSOMC6's Avatar
DSOMC6
Race Director
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Community Builder
 
Joined: Dec 2005
Posts: 11,839
Likes: 107
From: God's Country, ID
Default

Originally Posted by oldmansan
I would also advise not wrapping headers. It doesn't last long under high heat. I would advise a good ceramic/aftermarket coating, although there are mixed opinions on coating the inside only versus inside and outside. I don't believe coating the inside would be a problem if you're staying N/A or supercharged, although turbo applications are where I'd personally only coat the outside. I also think highly of Swaintech offerings. I'm a Corvette n00b, but have run ceramic coated headers for nearly five years on a turbocharged Subaru.

San

San
Turbo kits for the C6 require their own (mfg spec) exhaust manifolds. Mine are cast iron.
Reply

Get notified of new replies

To Header wrap pros and cons

Old Dec 24, 2007 | 03:51 PM
  #18  
mte.smiles's Avatar
mte.smiles
Racer
10 Year Member
 
Joined: Sep 2006
Posts: 264
Likes: 0
From: Bradenton Florida
Default

You might want to take a look at the Melrose headers. They come jet hot coated, the fit is excellent, and life time warranty as long as you own the car. Some folks argue that they are only mild steel vs. Stainless steel. Mild Steel flexes better and less risky for cracks at the flanges. They keep a nice shine which helps if you're showing your car. Check out their FAQ on their website and decide for yourself. So far, my Melrose headers with long tubes and X-pipe have been performing flawlessly. Good luck. I do agree with the other guys here about not wrapping them. Jet hot coating will solve that for you.
Reply
Old Dec 25, 2007 | 10:07 AM
  #19  
AR Headers's Avatar
AR Headers
Premium Supporting Vendor
 
Joined: Nov 2005
Posts: 1,779
Likes: 129
From: Amityville ny 631-608-1986
Default

We also do not recommend wrapping headers because of the combination of heat and moisture built up within the wrapping. We also aren't a big proponent of ceramic coatings with our 304 S/S systems unless the application has forced induction. Feedback from some highly experienced tuners told us coatings on N/A applications, particularly those with greater than stock camshaft lifts and durations can cause excessive heat to back up into the combustion chamber promoting detonation. With mild steel, coatings are a must for longevity and mild steel simply won't hold the heat in as well as S/S. Therefore coating mild steel isn't nearly as detrimental.

Nick
Reply
Old Dec 25, 2007 | 10:40 AM
  #20  
CHASLS2's Avatar
CHASLS2
Team Owner
 
Joined: Aug 2006
Posts: 57,804
Likes: 1
From: Portrichey FL
St. Jude Donor '13
Default

My none coated AR headers do just fine! And they cool off pretty fast.
Reply



All times are GMT -4. The time now is 09:08 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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
story-8
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-9
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE