Valve cover gaskets

[cudabob496]

Thanks.

I have a stock Six Pack air cleaner setup but these individual ones make tuning and adjusting the carbs much easier plus it's nice to be able to show people what a Six Pack setup actually looks like instead of hiding it under a big air cleaner.

Ya, there are some gorgeous carbs that are unfortunately hidden from sight under an air filter.

[tman]

What's the part # for the Fel Pro with steel inserts?

[arcticmopar]

I was using the mopar perf thick black v/c gasket (same as the felpro) with good results other than you usually cant reuse them. I have tried the moroso's and they worked with stamped steel covers but they split down the middle with cast covers. They dodnt have bosses around the bolt holes and the steel shim didnt go full width of the gasket and it split the silicone when overtightend with ridgid covers right along the edge of the steel shim. I now have a new beautiful set of cometics that do have washers around the bolt holes and a full width steel shim encased in black silcone...but wont be able to know how good they are till next summer.

[brads70]

I was using the mopar perf thick black v/c gasket (same as the felpro) with good results other than you usually cant reuse them. I have tried the moroso's and they worked with stamped steel covers but they split down the middle with cast covers. They dodnt have bosses around the bolt holes and the steel shim didnt go full width of the gasket and it split the silicone when overtightend with ridgid covers right along the edge of the steel shim. I now have a new beautiful set of cometics that do have washers around the bolt holes and a full width steel shim encased in black silcone...but wont be able to know how good they are till next summer.

I've been looking for something with that design. Do you have a part #? BB or SB?

[73EStroker]

Brad they are Cometic C5983 listed at $39 ea. I use their MLS head gaskets and am pleased.

[brads70]

Brad they are Cometic C5983 listed at $39 ea. I use their MLS head gaskets and am pleased.

Thanks! 

[tman]

Nice write up Arctic.  As far as Cometic, you are talking $39 each not for the pair. 

[Mopar Mitch]

Regarding the word "continuos"... for RTV resistance to heat, it actually means only a minimum requirement of up to 30 minutes.

The metal inserts inside cerat gaskets are intended as "torque limiters" so the gasket, primarily, doesn't get over squeezed, and thus splitting.   Rubber gaskets do not compress -- they get squeezed and become distorted in their volume.  So, if a rubber gasket gets squeezed too much (typically any more than ~30-50% maximum) it will then split apart due to its excessive distortion.

You will NEVER find any gasket manufacturer instructing to apply RTV across a gasket to hold it in place.  In fact, if RTV is placed onto a gasket and the gasket gets clamped down, the RTV actually acts a s a lubricant.. sorta like a greese.. welcoming the gasket to slide out of position.   RTV is best used as a filler of gap, such as at corner joints of intakes and oil pans.

[72cudamaan]

 

You will NEVER find any gasket manufacturer instructing to apply RTV across a gasket to hold it in place.  In fact, if RTV is placed onto a gasket and the gasket gets clamped down, the RTV actually acts a s a lubricant.. sorta like a greese.. welcoming the gasket to slide out of position.   RTV is best used as a filler of gap, such as at corner joints of intakes and oil pans.

  Finally, someone else that understands gaskets and how they work.

[HP_Cuda]

It helps if you don't crush the gasket in the first place....

[72cudamaan]

It helps if you don't crush the gasket in the first place....

  

[burdar]

Here's the Moparts thread about the new high heat gaskets.

http://board.moparts.org/ubbthreads/showflat.php?Cat=0&Number=7855502&an=0&page=1#Post7855502

[Mopar Mitch]

Some of you may know that I used to be an engineer with Fel-Pro for 20+years.. always concentrated on the aftermarket side.  I'd given hundreds of gasket seminars around the country and wrote the installation installations/tips within the gasket sets.

[dodj]

Anyone skip the gasket and use the Permatex Black Form-a-Gasket RTV goop?

I used a type of black 'form a gasket' goop back in about 1985. What I found after a while the goop went hard. Heat cycling maybe? The end effect was hard bits of goop fell in around the valves when I removed the valve covers later. It was a pita cleaning out the bits of hard goop so I never used it again. Don't remember if it was Permatex or not and formulation may have changed since then. I'd stay away from it myself.

[cudabob496]

well, against most all recommendations, I had a valve cover off, one that is always seeping oil towards the back
on the passenger side. Not having new gaskets, I blotted dry the existing gasket that was tacked to the valve cover
from initial installation a few years ago. I then took some black form-a-gasket, and spread on a thin layer with my finger, on the formally oil
soaked cork gasket. I then installed the valve cover, made it finger tight, let it sit for about 4 hours, then tightened it down, as normal.
For the first time in 10 years, I'm getting no oil seepage in that area.  I'm sure my leakage has been due to the after market valve covers
not being perfectly flat.

So, one point for putting form-a-gasket on top of the cork gasket, and having no leaks.