I have come to the conclusion that it's my non-coated Edelbrock TES that's causing my Camaro to overheat. The headers run right next to a metal coolant line that goes torwards the heater core. Also I just read an article in Car Craft that shows coated headers run 50% cooler than non coated. I think it's time to pull them off again and get them coated. Any other opinions on this matter?

 

my car ALWAYS ran hotter than normal when i had edelbroke headers on it. the driver's side header is only like 2" away from the block if that much at all. i checked with a laser thermometer and the driver's side of the block was always hotter than the other side....no over heating problems with the new hooker long tubes and they aren't coated either.

 

Try some of that header wrap from Summit .