C3 Exhaust Option Question
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5th Gear
Joined: Jun 2013
Posts: 5
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C3 Exhaust Option Question
I need to replace my stock exhaust on a 68 427 as it is at end of life. Research points to iron exhaust with ceramic but I am interested in headers for performance and big block sound (not interested in side pipes with noise in my ear). I am also concerned about not generating too much heat under the engine. Curious what some of you guys have done and your results?
Melting Slicks
Joined: Jul 2010
Posts: 2,503
Likes: 33
From: McGrady NC
St. Jude Donor '15-'16
From experience, headers are somewhat noisier and hotter than factory manifolds simply due to the wall thickness of the pipes and that they tend to convey head further under the car. Wrap the headers in heat tape or buy ceramic coated ones to minimize but not eliminate the header "sound" and the extra heat. Unless you are running an upgraded engine setup, stock appeals to me. I run headers on both my small-block Corvettes, but one needs it and the other came that way. It is totally your choice. 
Melting Slicks
Joined: May 2001
Posts: 2,131
Likes: 4
From: May help you? You can sure as hell try!
I have a pair of Hooker Super comps that I just took off my '68 427. They are ceramic chrome coated on the outside and thermal barrier ceramic coated on the inside. I took them off because I decided to go back to the original exhaust manifolds. I also have a set of collectors/pipes (also ceramic coated) to connect to a factory exhaust system. All are in great condition. If you're interested, PM me. I won't let them go for nothing but my price is much more reasonable than a new set of ceramic coated Hookers.
BTW, I've found that factory applied ceramic coatings are junk. If you decide to buy new, I think you're better off buying a bare set, mock up the fit (that way if you have to make minor mods you won't damage the coating), then have them coated by a reputable shop that specializes in applying these kinds of coatings.
BTW, I've found that factory applied ceramic coatings are junk. If you decide to buy new, I think you're better off buying a bare set, mock up the fit (that way if you have to make minor mods you won't damage the coating), then have them coated by a reputable shop that specializes in applying these kinds of coatings.
