best way to seal turbo headers

[black50]

ive heard of a few different ways to seal the headers to the heads. Seems as though the ultra copper silicone is the way to go. I have even read of people using axle grease, something about the extreme heat turns it into hard carbon???

What about copper header gaskets? and are locking header bolts best or just regular header bolts

Thanks

[VaderTT]

Bead of ultra copper rtv, let it tack or dry for a bit, put it together and let it sit overnight before you start it. Works everytime.

[FRANCISCO308]

Bead of ultra copper rtv, let it tack or dry for a bit, put it together and let it sit overnight before you start it. Works everytime.

x2
Ever since Paul ''greenbullet'' told me. Ive been using it.

[black50]

cool, thanks guys.

[VaderTT]

I've used that method on everything from turbo hondas to turbo mustangs.

[Baron Von Crowder]

I've used that method on everything from turbo hondas to turbo mustangs.

Did it on my 2.2 turbo MS6 lemons enduro car.

[greenbullitt]

if the flanges are true enough, you dont even have to let it sit...

[turbostang]

On a true header, on a turbo car, you NEVER use gaskets. You have a HIGH probability of failure. If you manage to warp a flange, you are guaranteed to have a lifetime of problems till the flange is repaired.

Axle grease, lol. no.


Ultra Copper is the ONLY way to go, it never fully hardens for whatever reason and if you properly torque the flanges (inside-out) you'll have a hell of a time getting them clean enough next time, that shit sticks that good!