1969 Big Block Oil Cap - NCRS Discussion Boards

1969 Big Block Oil Cap

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  • Joseph A.
    Very Frequent User
    • June 20, 2012
    • 136

    1969 Big Block Oil Cap

    The new TIM&JM for the 68-69 Corvette has come out and I have a question about the oil cap for the 427. It states that there is an "S" stamped on the rivet and says nothing about the SMC logo. Also the one they show as an example also does not appear to have the SMC logo. Is there an opinion on this as I know that there are discrepancy's in the manual.
  • Terry M.
    Beyond Control Poster
    • September 30, 1980
    • 15599

    #2
    Re: 1969 Big Block Oil Cap

    Originally posted by Joseph Aronne (17712)
    The new TIM&JM for the 68-69 Corvette has come out and I have a question about the oil cap for the 427. It states that there is an "S" stamped on the rivet and says nothing about the SMC logo. Also the one they show as an example also does not appear to have the SMC logo. Is there an opinion on this as I know that there are discrepancy's in the manual.
    I will offer an opinion; for what it is worth. BTW: You know what opinions are like.

    I have yet to see a known original chrome 1969 or 1970 oil fill cap with the SMC logo on it. I am still looking.

    I know that for years a reproduction chrome oil cap was available with both the S on the center rivet (poorly stamped I might add) and the SMC logo in the field.

    There you have it. My opinion.
    Terry

    Comment

    • Joseph A.
      Very Frequent User
      • June 20, 2012
      • 136

      #3
      Re: 1969 Big Block Oil Cap

      Terry;

      You responded to my question sometime ago about the S and the SMC logo on an original oil cap from 1969. For the last 2 years my 1969 L89 has been at the restoration shop where is was being restored. This week they finished everything on the body so they untapped the engine compartment when I looked at the oil cap (which is original) I noticed it had the S and the SMC. Your thoughts.
      Attached Files

      Comment

      • Joe L.
        Beyond Control Poster
        • February 1, 1988
        • 43219

        #4
        Re: 1969 Big Block Oil Cap

        Joseph------


        I don't think this is an originally installed oil fill cap. However, I do not think it's a reproduction, either. It's simply a later SERVICE example of the original cap, GM #3851735, as manufactured by Stant. This cap may also have been used on later PRODUCTION L-82. It's also possible the cap is an aftermarket Stant cap which, for any given period, was the same as the GM cap.
        In Appreciation of John Hinckley

        Comment

        • Terry M.
          Beyond Control Poster
          • September 30, 1980
          • 15599

          #5
          Re: 1969 Big Block Oil Cap

          Joseph,
          You asked for my thoughts:
          I would agree with Joe L. My experience is that originally installed chrome oil caps have only the S in the middle.

          Have you owned your 1969 since new?
          Terry

          Comment

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