Value?--'57 997 heads - NCRS Discussion Boards

Value?--'57 997 heads

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  • Clem Z.
    Expired
    • January 1, 2006
    • 9427
    #16
    Re: Value?--'57 997 heads

    Originally posted by John Hinckley (29964)
    George -

    Slightly different tooling/gaging/part registration system in the machining process between Flint and Tonawanda, like the drilled/tapped front oil gallery and external plug on a Flint block that isn't on a Tonawanda block. Plants were allowed some latitude in process details as long as it didn't affect the compatibility of bolt-on parts.
    on BBC 366 truck engines that drilled and tapped passage into the oil gallery was used to supply oil to the air brake compressor and i wonder if that was the reason for it on the SBC
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      • John H.
        Beyond Control Poster
        • December 1, 1997
        • 16513
        #17
        Re: Value?--'57 997 heads

        Originally posted by Edward Lepelis (22093)
        I have never seen a Tonawanda 997.

        Ed
        Ed -

        I haven't either, but I've seen lots of Tonawanda 539's.
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