72 valve cover bolts BB - NCRS Discussion Boards

72 valve cover bolts BB

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  • Ken C.
    Expired
    • August 31, 2006
    • 120

    72 valve cover bolts BB

    I have a 72 BB with braided wires. My question is regarding the valve cover bolts. I have the RBW on non spark plug wire ground bolts, and L on ones with spark plug wire hold downs. Is this correct. Ive seen TR on the wire grouds.
  • Joe L.
    Beyond Control Poster
    • February 1, 1988
    • 43193

    #2
    Re: 72 valve cover bolts BB

    Ken----

    It's VERY common for the headmarking of the bolts to be different. The bolts for the spark plug wire grounding positions were installed at St. Louis and are slightly longer than the rest. The other bolts were installed at the engine plant. The chances that they'll both have the same headmarking are not great. Also, the bolts installed at St. Louis are not painted like the valve covers and the remaining bolts installed at Tonawanda.
    In Appreciation of John Hinckley

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