New Hedman Headers - Leaking

[Marv D]

Originally Posted by Alex1

You can toss the gaskets and use the high temp rtv sealer.

It really does work. I haven't used a header gasket on the Nova in years,, just the orange Permetex hitemp. BUT, those are Lemons headers with a nice thick flat flange and Stal bolt pattern, track only car. I've never tired it on a set of street headers. How does it hold up on the street and or a daily driver Alex?

[PA-IndianRider]

Originally Posted by Marv D

It really does work. I haven't used a header gasket on the Nova in years, just the orange Permetex hitemp ...... BUT........track only car........ I've never tired it on a set of street headers. How does it hold up on the street and or a daily driver Alex?

I have thought about trying the "Orange Permetex Hi-Temp" but also wonder how it holds up for "daily use".

So I "assume" the Permetex would be used "without" the gasket???

[Alex1]

Originally Posted by Marv D

It really does work. I haven't used a header gasket on the Nova in years,, just the orange Permetex hitemp. BUT, those are Lemons headers with a nice thick flat flange and Stal bolt pattern, track only car. I've never tired it on a set of street headers. How does it hold up on the street and or a daily driver Alex?

I ran it that way for 2 years on my Turbo Mustang - no issues. My truck still has gaskets because thats the way I bought it and they're not leaking. When they do, RTV sealer is going on.