Re: header gasket/ collector gasket - 06/01/2002:02 AM
I second RicRaw on the Remflex gaskets. I have them on my wedge running hookers and Eddy Performer RPM heads. No leaks and lots of crush. Supposed to be reusable but I haven't tried that yet. They are pretty thick (~0.250") so if your fit is really tight, they might make things worse.
Fiber only = very conformable but short life Fiber-faced over perforated metal = conformable with long life metal faced (flat of MLS): not very conformable for sealing; will last very long
I'm a former gasket engineer from a major company.
Only times I've had exhaust gasket problems, the actual cause was trying to seal mis-matched or warped surfaces.
I agree with this. The other problem I've run into is bolts loosening. Locking header bolts are wonderful. That or safety wire. Also I've used wire connector star washers under the bolt head and nut.
Any gasket with a thin skim of copper rtv works great. Copper rtv and copper gaskets is bulletprofof and reusable. Just wire brush it off and re-apply the rtv each time you need to take it apart. My brother got this idea from some fuel altered guys who came here years ago as that is what they did with their race car.
Re: header gasket/ collector gasket - 06/02/2012:18 AM
I didn't disappear, I had a very busy day. I picked a set of Fel-pro 1414 locally. and Mr gasket 3 1/2 collector gasket. I will put some high heat silicone on them. I will order the remflex gasket. Thanks guys, sorry for getting back late.
There is no need for any silicone to be placed onto the fiber-faced gaskets... in fact, the Fel-pro gaskets have Teflon anti-stick coating applied so that they will not stick... and favors re-usage. The fiber facing will conform as long as there isn't a lot of warpage (as any gasket always wants flat straight surfaces to seal properly).