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line 1594 Warning: Undefined array key "lastactivity" in .../vb/library/user.php on line 1610 69 Power Steering Pulley - NCRS Discussion Boards

69 Power Steering Pulley

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  • Allen N.
    • Today

    69 Power Steering Pulley

    The judging manual states, "On small block engines, the power steering pulley is stamped sheet stock with a GM logo and part number." My 69 L-46 has a cast iron pulley, and all of the parts suppliers I have checked sell a cast iron pulley for this application. Can someone solve my confusion?

    Thanks,
    Allen
  • Jack H.
    Extremely Frequent Poster
    • April 1, 1990
    • 9906

    #2
    Re: 69 Power Steering Pulley

    Judging manual is correct, PS pulley that mounts to the harmonic balancer for '63-74 SB is stamped steel, 6-11/16 inch diameter with PN embossed on it. There's a nice picture in the Paragon catalog (their part 1769) to view.

    Comment

    • Allen N.
      • Today

      #3
      Re: 69 Power Steering Pulley

      Thanks Jack. Boy do I feel stupid. I had looked at Paragon, but miread something.

      Comment

      • Allen N.
        • Today

        #4
        Re: 69 Power Steering Pulley

        Thanks Jack. Boy do I feel stupid. I had looked at Paragon, but miread something.

        Comment

        • Allen N.
          • Today

          #5
          Re: 69 Power Steering Pulley

          It looks like part No. 1769 is for 69 small blocks with A/C. If you look at Paragon part No. 1352, it is a cast iron pulley for 1969-74 350's w/o A/C.

          Comment

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

            #6
            Re: 69 Power Steering Pulley

            Allen------

            There is much confusion regarding power steering pump pulley applications. A lot of it was started by GM since the P&A Catalogs are very "ambiguous", at best, about this. However, for 1969 I can tell you this: 300 hp engine with and without A/C used stamped steel pulley GM #3770509. L-46 without A/C used cast iron pulley GM #3834720. I'm not sure which pulley that L-46 with A/C used.

            If you attempt to install the stamped steel pulley, GM #3770509, for your application, I think that you will find that the pulley grooves will not align properly with the crank pulley. 300 hp with and without A/C used an "add-on" crank pulley which drove the p/s pump. L-46 drove the power steering pump pulley directly from the outer groove of the 2 groove crank pulley. That fact and the difference in the crank and w/p pullies used for the 300 hp and L-46 applications is the reason for the difference in p/s pump pulley requirements.
            In Appreciation of John Hinckley

            Comment

            • Allen N.
              • Today

              #7
              Thanks Joe!!! *NM*

              Comment

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