Headers
Thread Starter
Instructor
Joined: Mar 2010
Posts: 219
Likes: 0
From: Texas
Headers
I just replaced my exhaust manifolds with some shorty headers. After 3-4 weeks on I have noticed one side is white and the other side is black( the headers themselves were black) and it has got me concerned. I can post pictures later.
Melting Slicks
Joined: Jul 2010
Posts: 2,503
Likes: 33
From: McGrady NC
St. Jude Donor '15-'16
Ceramic coated headers can change color depending on the heat of the exhaust. I've never heard of the color changes being isolated to one side or the other. Usually, a leaner (hotter) or colder (richer) cylinder(s) may have different enough output temps that groups of pipes may differ some. The firing order and dual plane intake port layouts can have some influence, as can lean or rich cylinders as a result of carb jetting, vacuum leaks or bad valves. But different from one side to the other? That's a new one...
Thread Starter
Instructor
Joined: Mar 2010
Posts: 219
Likes: 0
From: Texas
i have the pictures but i cant post them. ask me for a URL but all i got is the physical file. i can e-mail them to you or if i can get an idea how to put them on the site i'd appreciate it.
Thread Starter
Instructor
Joined: Mar 2010
Posts: 219
Likes: 0
From: Texas
Ok here what they look like.
http://www.flickr.com/photos/58854115@N03/6262277124/
http://www.flickr.com/photos/58854115@N03/6261752319/
http://www.flickr.com/photos/58854115@N03/6262277124/
http://www.flickr.com/photos/58854115@N03/6261752319/
Safety Car
Joined: Sep 2007
Posts: 4,443
Likes: 326
From: Indy Indiana
1. How to post pictures.. don't say you can't.. its easy
http://forums.corvetteforum.com/help...es-thread.html
2. get you a 30$ infrared gun at autozone.. it will tell you really if one pipe is alot cooler than the other..
http://forums.corvetteforum.com/help...es-thread.html
2. get you a 30$ infrared gun at autozone.. it will tell you really if one pipe is alot cooler than the other..
Burning Brakes
Joined: Aug 2001
Posts: 854
Likes: 7
From: dudley ma
I know there is a break in for ceramic coated headers. Warm them up alittle than let them cool off. You do this several times. Not sure if it applies to painted headers.........
Installation Notes
Breaking in an engine with ceramic coated Headers WILL result in damage to the coating and will VOID all warranties. Ceramic coated Headers require several heat cycles to fully cure before they will withstand extreme heat. FlowTech recommends using cast iron exhaust Manifolds or old Headers to break in new engines to avoid coating damage
From Holley's website
Installation Notes
Breaking in an engine with ceramic coated Headers WILL result in damage to the coating and will VOID all warranties. Ceramic coated Headers require several heat cycles to fully cure before they will withstand extreme heat. FlowTech recommends using cast iron exhaust Manifolds or old Headers to break in new engines to avoid coating damage
From Holley's website
Last edited by 78pace; Oct 20, 2011 at 08:55 AM.
