C-3 Master Cylinder Casting ID - NCRS Discussion Boards

C-3 Master Cylinder Casting ID

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  • Bill Lloyd #33481

    C-3 Master Cylinder Casting ID

    I have master cylinder casting number 5460346 with the () marking on the passenger side and no bledder screws. The casting has pads for the bleeders but they are not drilled. On the other side is cast 271 D1 and the front brake line machined area has GM 300 stamped in very small letters / numerals. What year(s) does this fit. The bore would ID it as a PB master cylinder 1 1/8". Thanks

    Bill
  • Joe L.
    Beyond Control Poster
    • February 1, 1988
    • 43193

    #2
    Re: C-3 Master Cylinder Casting ID

    Bill-----

    The master cylinder that you've described uses a casting that was used for 1967 Corvettes with J-56 HD power brakes and 1968 to 1976 Corvettes with J-50 power brakes. It may also have been used after 1976. The non-bleeder versions of this master cylinder were used in PRODUCTION after 1973 and all SERVICE master cylinders after about that time for 1967+ applications were also not provided with bleeders. The casting remained the same, though, after the bleeders were deleted on the finished master cylinder so the CASTING provisions for the bleeders remained.
    In Appreciation of John Hinckley

    Comment

    • Bill Lloyd #33481

      #3
      Thanks Joe Lucia *NM*

      Comment

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