Fabricated Aluminum Valve Cover

Discussion in 'Small Block Mopar Engine' started by SBeeMan, Aug 9, 2018 at 10:24 PM.

  1. SBeeMan

    SBeeMan Well-Known Member

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    Who makes a good fab aluminum valve cover for small block Mopar?
    I've tried the $80.00 e-bay covers,got oil coming out of the bolt tubes.
    Not looking for $300 buck plus covers either.
     
  2. pishta

    pishta I know I'm right....

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    what kind of gasket are you running for this oil percolation?
     
  3. SBeeMan

    SBeeMan Well-Known Member

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    Moroso Perm-Align gaskets
    Strange thing is just got three bleeding oil,all on the bottom.
    I pulled the covers,poured a little oil in them and they are not leaking around the top of the tubes at the welds.
    Takes about 5 min. for the leaking to start.
    Running a HV pump,75psi @ idle hot,15-40 oil.
     
    Last edited: Aug 9, 2018 at 10:56 PM
  4. '63GT

    '63GT Well-Known Member

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    A friend of mine had similar issues.. He finally used some fiber gaskets under the heads of the bolts.
     
  5. SBeeMan

    SBeeMan Well-Known Member

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    I was thinking of trying to make gaskets for them.
    A Holley bowel screw gasket looks like a close fit.
    Did he make his or something he bought?
     
  6. '63GT

    '63GT Well-Known Member

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    I think he used some round fiber gaskets out of a faucet repair kit.. from Harbor Freight, maybe?
     
  7. brian6pac

    brian6pac Well-Known Member

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    What pcv are you using ? if you have a vacuum in the crankcase there should be no leaks! Sounds like you have pressure in the crankcase.
     
  8. mopardude318

    mopardude318 Well-Known Member

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    Man I was gonna say those Moroso valve covers are real nice but you said nothin over 300. Think they go for $400. lol.
     
  9. rustycowll69

    rustycowll69 Well-Known Member

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    Am I the only one that thinks that's a lot of oil pressure, hot, at idle no less?
     
    • Agree Agree x 3
    • jimjimjimmy

      jimjimjimmy lobsterman FABO Gold Member

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      I agree with you but the high pressure is not causing the leak .
       
    • Dartish

      Dartish Well-Known Member

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      I bought a set from KMJ Performance. Used fel pro gaskets and never had a leak of any kind on a daily driver. Think they were like $85. I wouldn't hesitate buying another set 0330170236.jpg
       
    • SBeeMan

      SBeeMan Well-Known Member

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      It's a new bracket car build,I'm using a Mr Gasket pan evacuation.
      This was during the brake-in of the new stroker motor.
      I was mistaken about the pressure,75 psi cold,60 psi hot at idle.
      These are the KMJ Performance covers I'm using.
      This afternoon I put some hard Holley bowel gaskets under the bolts with Right Stuff sealer.
      I'll fire it tomorrow see if it stopped the leaks.
       
      Last edited: Aug 11, 2018 at 7:07 AM
    • rustycowll69

      rustycowll69 Well-Known Member

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      true, to a point. But maybe between the high oil pressure and HV oil pump, he''s throwing so much oil around the valve cover he's overcoming a poor sealing situation and making it worse. The previous suggestion that maybe the engine is pressurizing not evacuating because of an inoperable PCV system, poor ring seal, or "what have you" is a possible factor, too. Just spit-balling, here.