Fel-Pro cork Valve cover gaskets SUCK!

Engine, Transmission & Driveline

  1. noah300g

    noah300g New Member

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    The hipo 375HP TNT motor in my 300 Hurst has those 'performance' factory manifolds so close to the valve covers that every few years they have to be changed just due to the heat which dries out the gaskets, makes them brittle, and then they start to weep. There is an exhaust manifold gasket which has an upper additional 'flap' that sticks up between the manifold and the valve cover that helps preserve both the gasket and also the paint on the valve cover itself. Can't remember who makes it. Looks a little goofy, but solves two problems.
     
  2. marty koirtyohann

    marty koirtyohann Member

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    victer reinds r the only ones i can get to seal on my 440 the rest leak way too fast

     
  3. bluefury361

    bluefury361 Old Man with a Hat

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    I use fel pro with no issues.
    Be sure the valve cover flange is not distorted.
    Glue the gasket to the valve cover, clean the mating surface on the head. No sealant on the bottom side.
    A dab of red locktite on the cover bolts/screws.
    Torque to spec. Re torque after a couple of heat cycles.

    Same applies to the oil pan gasket.

    I try to avoid using silicone sealers.
     
    • Agree Agree x 1
  4. 70bigblockdodge

    70bigblockdodge Old Man with a Hat FCBO Gold Member

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    Trick is gluing gaskets to VC. I use the yellow 3M trim adhesive, some don't like that because too hard to remove from VC. Rtv needed when head casting is just that uneven.