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  • 3 Post By NTFDAY

Thread: SBC Exhaust Manifold Bolts

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  1. #1
    Triker is offline CHR Member Visit my Photo Gallery
    Join Date
    Sep 2014
    Car Year, Make, Model: Cobra Trike

    Question SBC Exhaust Manifold Bolts


    I have a 1981 Chevy 305.
    I am installing a set of Rams Horns on it.
    However, all the mounting bolts were lost.
    I was told that these bolts are 3/8 x 16.
    8 of these bolts are one length and 4 of them are longer.

    Does anyone know what length each of these bolts are?

    Also, 1 of the bolts/studs that holds on the exhaust pipe is missing.

    What is the size of this bolt?

    And there are 4 small plugs with square heads on each manifold--

    What are these plugs called?

    I was told that these plugs are 1/4" NPT---is this correct?

    If anyone has any of these bolts, I would like to buy them.

    Contact: Mike--407-953-5007---drumdoctor at live dot com.

  2. #2
    NTFDAY's Avatar
    NTFDAY is offline CHR Member Visit my Photo Gallery
    Join Date
    Aug 2003
    Car Year, Make, Model: '66 Mustang, 76 Corvette

    This one example SBC Exhaust Manifold Bolts "RAM Horns" Stainless Small Block Chevy 283 327 350 | eBay
    You can also check at Jegs.com, Sumitt Racing Northern Auto,etc.......
    ted dehaan, Rrumbler and 35WINDOW like this.
    Ken Thomas
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