This my be a duplicate thread. I don't know what happened to the thread I just posted but it didn't show up on the board. In a nutshell. Sanderson's website states not to put headers on a new or untuned motor. This goes for chrome, stainless and ceramic coated headers. I have not seen other makers of headers give this advice. I plan on putting ceramic coated headers on my project car which happens to have a fresh 383. I don't really want to put an exhaust set up on this thing and then put the definitive headers on it later. Have you all heard of this as being a problem? i would like to hear from anyone with experience in putting ceramic coated headers on a new motor and especially if they ran into tourble with the finish. Thanks in advance. Mike

If you have a lean condition the headers will get hot enough to cook the finish off. I haven't had this problem myself but have heard of it happening. During break in the exhaust can get pretty hot if you don't have the tune right so either stick on a set of old headers or make sure the motor is running a little fat when you first fire it up (not a bad idea anyway) I always step up a couple of jet sizes for a fresh start/breakin carb just so I know I won't have a lean condition.
Mark

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