vristang said:A couple other things that just came to mind.
Supposedly, TrickFlow heads have a raised valve cover flange, by .300" if I remember?
Also, I don't think I mentioned using 2 rubber valve cover gaskets to help increase clearance. I would not recommend cork for this. Considering the cost of the reusable rubber gaskets, I would not ever recommend cork for any application.
just my opinion though.
blackcloud50 said:I have Edelbrock RPM heads. So you are suggesting to double up on these http://www.fordracingparts.com/parts/part_details.asp?PartKeyField=1818 as opposed to the one thick cork gasket?
vristang said:To ensure a good seal with cork you need to use silicone, which is a pain in the @$$ to remove when you have to adjust your rockers. Even if you don't use silicone, the cork material will deteriorate over time with heat cycling. The reusable rubber (like the ones from Ford) are very easy to clean up. A damp rag with some mild solvent does very well. The ones I have had for several years don't seem to be showing any signs of wear, despite having been removed countless times.
I think I purchased these at Napa or Schmucks, for less than $20. Not sure on the price though.
jason
blackcloud50 said:I have those reusable rubber ones on right now and I have been using and reusing them for a long time now. When I got these new covers (which I have yet to install), I purchased the thick corklam anticipating clearance issues. I wasn't too sure about attempting to double up on the Ford ones....Have many people done this with success (no leaks)?
vristang said:I can't think of anyone specifically, but it does seem fairly common. As long as you don't over torque they should hold up well.
Also, check how much clearance you have between the newly raised valve cover and the intake manifold and throttle body. I cut my intake down .3" and barely have any clearance between the TB cable and pass. valve cover.
vristang said:A couple other things that just came to mind.
Supposedly, TrickFlow heads have a raised valve cover flange, by .300" if I remember?
Also, I don't think I mentioned using 2 rubber valve cover gaskets to help increase clearance. I would not recommend cork for this. Considering the cost of the reusable rubber gaskets, I would not ever recommend cork for any application.
just my opinion though.
blackcloud50 said:Not sure if these Corklam gaskets are being mistaken for an older style cork gaskets or not but here is a description of them-
Counter blowout or high-vacuum conditions.
Certain engines, such as small block and big block Chevys, can produce high-vacuum or blowout conditions that can be big problems for many valve cover gaskets. Fel-Pro Performance CorkLam gaskets are designed to deal with those challenges. They have a metal core for extra strength, with a special cork-and-rubber compound bonded to both sides. This produces tough gaskets that can deal with problem engines, while also providing a little extra clearance between the valve cover and the valvetrain.
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