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Have your chrome valve covers leaked?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by spincast375, Nov 25, 2004.

  1. spincast375

    spincast375 1/2 ton status

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    Mine do; some have told me chrome never give you a good fit and will always leak. I have the original covers. I am about to change out the valve cover gaskets. Am I better off to scrap the chrome? Engine is a rebuilt big block 454 cu. in.
     
  2. bigchief427

    bigchief427 Registered Member

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    nope and they are kinda cheap looking things that were on the truck when i got it I did put some rubber gaskets on the cover for giggles i try and keep em tight also
     
  3. BowtieBlazer

    BowtieBlazer 1/2 ton status

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    every chrome set I have owned leaked, on 3 diff motors, I think its because chrome doesn't radiate heat it holds in more than normal metals. I blame that extra heat for never sealing right. I have new gaskets and refinished covers just need to make time.
     
  4. Silverado_K5

    Silverado_K5 1/2 ton status

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    On chrome accessories, you need to scuff the gasket surface up with something to take the chrome off. I use a cut off wheel die grinder tool with roll lok scotch brite pads and treat the gasket side like I do for removing gaskets from machine surfaces. Hope that helps.

    Doug /forums/images/graemlins/truck.gif
     
  5. 84_Chevy_K10

    84_Chevy_K10 Banned

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    [ QUOTE ]
    On chrome accessories, you need to scuff the gasket surface up with something to take the chrome off. I use a cut off wheel die grinder tool with roll lok scotch brite pads and treat the gasket side like I do for removing gaskets from machine surfaces. Hope that helps.

    Doug /forums/images/graemlins/truck.gif

    [/ QUOTE ]

    Bingo. /forums/images/graemlins/thumb.gif
     
  6. wasted wages

    wasted wages 3/4 ton status

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    A trick the has worked for me is to use cork gaskets,,aviation hi tack permatex glued to the cover ONLY,,,then use some grease on the side that will contact the head,,
    use a set of hold downs that spread the bolts clamping force evenly across the lip of the covers & tighten down just enough to compress the gasket,,,The best thing is to use is a set of aluminum covers,,,they seal so much better.
     
  7. walla2k5

    walla2k5 1/2 ton status

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    I've thrown away mine,opted for some aluminun ones and polished them up,look great.... /forums/images/graemlins/usaflag.gif
     
  8. Z3PR

    Z3PR Banned

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    When I do buy crome, I always get the AC Delco [​IMG] I like the tall ones. On older vehicles crome looks good.
     
  9. K5MONSTERCHEV

    K5MONSTERCHEV 1/2 ton status

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    I have the same ones Z3PR showed, they don't leak.
     
  10. mxfireman

    mxfireman 1/2 ton status

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    I had the same problem and I switched to the aluminum and a rubber gasket and have zero problems.
     
  11. K1Orion

    K1Orion 1/2 ton status

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    [ QUOTE ]
    Engine is a rebuilt big block 454 cu. in.

    [/ QUOTE ]

    I don't remeber if BB had the hold down tabs, maybe just bolts.
     

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