Valve cover bolts

Discussion in 'Original Drivetrain Topic' started by zfool, Sep 16, 2018.

  1. zfool

    zfool Veteran Member

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    anyone know the approx years for each style? [​IMG]
     
  2. dave@ztech

    dave@ztech Veteran Member Lifetime Gold Member

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    The one I have are flat topped , with a M , or nothing at all 1971
     
  3. 70-camaro

    70-camaro Veteran Member

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    The ones on my 70 are flat top with a (D) on them.
     
  4. 70lt1z28

    70lt1z28 Veteran Member Gold Member

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    Pretty sure those are cover bolts for the finned aluminum covers.

    4 of mine look like the one on thetop.

    4 of mine have lockwashers and have a F in a circle with 3 spokes from the circle. I think those go with the spark plug wire clips.
     
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  5. dave@ztech

    dave@ztech Veteran Member Lifetime Gold Member

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    I thought the aluminum ones were just a little longer ?
     
  6. 70-camaro

    70-camaro Veteran Member

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    Maybe timing chain cover bolts?
     
  7. 70lt1z28

    70lt1z28 Veteran Member Gold Member

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    I can't see how long they are.

    Valve cover bolts for the aluminum covers are 1 inch long and have the dished heads.

    For the stamped steel covers they have flat heads and are about 9/16" long.
     
  8. bodymanbill

    bodymanbill Veteran Member

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    image.jpg image.jpg My 73 has all the bolts with the R in them
     
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  9. zfool

    zfool Veteran Member

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    They are all 302 z28, LT1 and L82 aluminum valve cover bolts. Possibly 69 350hp vette had them too. They were always hard to find. Lots of valve covers and few bolts. I wonder how many variations there are.
     
  10. twozs

    twozs Veteran Member

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    73 7919C1D3-AB56-4C62-8F15-D85BE6A69056.jpeg B411B22B-BD52-49A2-AEA8-B3EB5EEF926F.jpeg
     
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