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SBC Valve cover gaskets, are there any real good ones?

Discussion in 'The Hokey Ass Message Board' started by Ayers Garage, Apr 16, 2007.

  1. Ayers Garage
    Joined: Nov 28, 2002
    Posts: 1,382

    Ayers Garage
    Member

    I'm looking for something better than normal cork or rubber valve cover gaskets for a 55-86 small block chevy. Does Felpro or anyone make a real good valve cover gasket for these engines? I know Felpro makes a printoseal line of gaskets for thermaostat housings and such, wondering if they do similar for valve covers.

    Thanks!
     
  2. squirrel
    Joined: Sep 23, 2004
    Posts: 56,036

    squirrel
    Member

  3. Duration
    Joined: Oct 2, 2006
    Posts: 543

    Duration
    Member
    from Wayne, MI

    once the rocker arms are adjusted i use mr gasket ultra seal gaskets. they are cork with a black coating on both sides that seals to the head and valve cover once the engine warms up. i put cheap gaskets on for cam break in and then put the ultra seal ones on after i check the rocker arm adjustment. good to go and never any leaks.
     
  4. They sound great............... until I saw the price.:eek: I guess you get what you pay for? It would be nice to be able to keep using them over and over though.

    I usually have okay luck with the cheaper cork gaskets. I think the secret is to make sure they're glued well to the valve covers, and make sure first that the flanges aren't bent on the valve covers, and don't overtighten the valve cover bolts so you won't bend (or crack) the flanges. For sheet metal valve covers, those wide tabs that spread out the load across a wider area of the flange help out. Cork gaskets swell up when they absorb oil, so they kind of adjust themselves to fit, but they need to be glued to the valve cover so they won't slide out of position. Once they get all crooked and take a set like that, they're hopeless.
     

  5. AHotRod
    Joined: Jul 27, 2001
    Posts: 12,216

    AHotRod
    Member

  6. hsheartaches
    Joined: Jul 3, 2005
    Posts: 460

    hsheartaches
    Member

  7. AHotRod
    Joined: Jul 27, 2001
    Posts: 12,216

    AHotRod
    Member

    Autozone

    FelPro VS-12869T

    $21.99

    BEWARE of that Ebay gasket.
     
  8. pitman
    Joined: May 14, 2006
    Posts: 5,148

    pitman

    Rusty has it right. If it's a tin valve cover, first take a bodyhammer and flatten the bolt hole areas from the gasket side. Then glue a cork gasket in place-to the cover. Then get the flat "GM-SBC" washers, install (only snug-don't overtighten), run the motor, warm it up and re-snug the cover screws. You can pull them off at will, and not suffer any leaks.
     
  9. squirrel
    Joined: Sep 23, 2004
    Posts: 56,036

    squirrel
    Member

    yeah, he wanted good gaskets, I didn't know he wanted them to be free also

    :)
     
    henryj1951 and falcongeorge like this.
  10. pitman
    Joined: May 14, 2006
    Posts: 5,148

    pitman

    It's rumoured that folks down Sierra Vista way use old peanut shells and Elmers glue! :eek: :D
     
  11. Ayers Garage
    Joined: Nov 28, 2002
    Posts: 1,382

    Ayers Garage
    Member

    Scored these rascals. I don't know exactly what year they are, but they are real deal Vette valve covers. I figure they're worth a set of good gaskets.
     

    Attached Files:

  12. squirrel
    Joined: Sep 23, 2004
    Posts: 56,036

    squirrel
    Member

    those are 70s vette valve covers, not bad....not real traditional, but hey.....

    and they also don't really need the good gaskets because they are well made covers.
     
  13. 29 sedanman
    Joined: Mar 22, 2005
    Posts: 2,282

    29 sedanman
    Member
    from Indy

    I have never had a problem with the good thick felpros. Just be sure not to over tighten them, probably the next biggest cause of a valve cover leaks right behind junk valve covers.
     
  14. Ayers Garage
    Joined: Nov 28, 2002
    Posts: 1,382

    Ayers Garage
    Member

    They'll be going on my O/T 72 SWB daily driver. The stock ones seem to leak a bit even with FelPro gaskets. I'm hoping these will cure the issue. I gave 20 bucks for the covers. I knew they weren't rare, but I figured a set of GM manufactured aluminum valve covers would be good quality units.
     
  15. Avg.Joe
    Joined: Dec 5, 2004
    Posts: 341

    Avg.Joe
    Member

    Yep.... I am using these and they work great. You get what you pay for and they are well worth it.
     
  16. tommy
    Joined: Mar 3, 2001
    Posts: 14,757

    tommy
    Member Emeritus

    [​IMG]

    I know this will sound stupid to many but I like the thick cork gaskets. Why? Because they look good. They look traditional. Cork was the state of the art for at least half of my hot rod experience. Sorry but I don't want blue gaskets on this engine. I'm sure they are the cats meow. Save them for your tuned port injection.:D

    I think Mr. gasket makes the double thick cork gasket. I like the fact that you can see them. I know weird...huh?

    If you adjust your valves every other night at the races you won't like them. I don't. I do wipe the head side down with vasoline to help with the sticking issue and use black weather strip cement sparingly ( I detest seeing traces of yellow gorilla snot) to hold them to the covers.

    I have a personal hang up about "blue goo" the first real popular silicone sealer that the piss poor mechanics slathered all over their engines. Anything that reminds me of that makes me cringe and shiver.

    Just a minor detail that some may understand and others will think is silly. Call me silly.:D
     
  17. Yo Baby
    Joined: Jul 11, 2004
    Posts: 2,811

    Yo Baby
    Member

    Some stocko FelPro cork gaskets glued to the covers will work great with those.
    No need to go spendin' extra dough there.
     
  18. For years I ran the plain old cork, glued well to the cover, on my 301, constantly adjusting the valves(I turned it 7500 about 60% of the time)and had no problems. The cast covers being stable, and the gasket conforming to the irregularities of the casting. LEE
     
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  19. Ayers Garage
    Joined: Nov 28, 2002
    Posts: 1,382

    Ayers Garage
    Member

    Thanks guys.

    I've had the stock steel covers on there awhile and they tend to start weeping periodically. I have to snug the bolts down again to stop the weeping. I think the gasket is compressing rather than the bolts loosening. I have lock washers and spreader plates under the bolts.

    I just figured I'd detail these covers and put them on with good gaskets to hopefully get rid of this mess for a long time. I'm not concerned with traditional on this little 72 pickup. I like leak free daily drivers.
     
  20. Yo Baby
    Joined: Jul 11, 2004
    Posts: 2,811

    Yo Baby
    Member

    Tin covers weep,no matter what,that's an immutable law.LOL
     
    T.L. likes this.
  21. KY Boy
    Joined: Sep 6, 2006
    Posts: 403

    KY Boy
    Member

    Fel Pro VS12869AC are the thick cork and I think they have the metal sleeves in the holes to thwart the overtightening. Any Advance or AutoZone can help you out. Just look at anything VS 12869. They have rubber (R), cork (c), Thick cork (AC), etc. If the AC's dont work I'd change the covers. I've never had trouble with the AC's.
     
    CornfieldPerformance likes this.
  22. Blues4U
    Joined: Oct 1, 2015
    Posts: 7,589

    Blues4U
    Member
    from So Cal

    Resurrecting this old thread to see if things have changed much in the past 9 years. What is your preferred gasket for this application, and do you use any sealant or glue to hold the gaskets in place?
     
  23. falcongeorge
    Joined: Aug 26, 2010
    Posts: 18,341

    falcongeorge
    Member
    from BC

    Thats what I do too, cork glued to the valve covers, and I reuse them over and over. Dont overtighten them in the first place, and they wont leak, and on stamped valve covers, use the load spreader thingys (pardon the technical terminology).
     
    Blues4U likes this.
  24. T.L.
    Joined: May 24, 2011
    Posts: 209

    T.L.
    Member
    from Colorado

    Felpro rubber gaskets. Glue them to the cover.
     
  25. Blues4U
    Joined: Oct 1, 2015
    Posts: 7,589

    Blues4U
    Member
    from So Cal

    What's your preferred "glue" George? I've always been partial to Gasgacinch (maybe it's just because of the lady with the long bare legs on the can).
     
  26. Yellow or Black Death works well for me. The 3M kind.
     
  27. falcongeorge
    Joined: Aug 26, 2010
    Posts: 18,341

    falcongeorge
    Member
    from BC

    I use the black stuff, either one works good. You know, the black rubber gaskets probably work good too, I am just like most guys, I use the same stuff I always have as long as it works the way it should, I have been using cork since I was kid, it just feels right to me.
     
    lurker mick likes this.
  28. I have the thick cork ones that came with my Dart valve covers. Glued them to the covers with 3M black adhesive and nothing on the head side. Using a set of spreaders that distribute the clamp load more evenly, so far so good on my 355.
     
    mad mikey and falcongeorge like this.

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