Engine Parts from Rebuild - NCRS Discussion Boards

Engine Parts from Rebuild

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  • Terry B.
    Very Frequent User
    • August 31, 1999
    • 607

    Engine Parts from Rebuild

    I was spring cleaning my garage recently and ran across engine parts from a professional rebuild of my '68 original 427/390 hp that took place over 7 years ago. I have old pistons, crank shaft, valves, rods, oil pump and a few other things. Is there any reason to keep this stuff. I have not needed it in 7 years so should I pitch it or give back to the rebuilder? Thanks for your replies.
    Terry Buchanan

    Webmaster / Secretary - Heart of Ohio Chapter www.ncrs.org/hoo

    Corvettes Owned:
    1977 Coupe
    1968 Convertible 427/390 (L-36) Chapter Top Flight 2007, Regional Top Flight 2010, National Top Flight 2011
    2003 Electron Blue Coupe
    2019 Torch Red Grand Sport Coupe
  • Joe R.
    Extremely Frequent Poster
    • May 31, 2006
    • 1822

    #2
    Re: Engine Parts from Rebuild

    Hi Terry,

    I could use the oil pump if it did not munch any metal.

    Joe

    Comment

    • Michael F.
      Very Frequent User
      • January 1, 1993
      • 745

      #3
      Re: Engine Parts from Rebuild

      if you don't want offer up to members or others who might need somethings.
      Michael


      70 Mulsanne Blue LT-1
      03 Electron Blue Z06

      Comment

      • Jim T.
        Expired
        • March 1, 1993
        • 5351

        #4
        Re: Engine Parts from Rebuild

        For sale adds for parts are very easy to enter for the NCRS Driveline. I would thing that the crankshaft could be sold.

        Comment

        • Duke W.
          Beyond Control Poster
          • January 1, 1993
          • 15610

          #5
          Re: Engine Parts from Rebuild

          Used pistons aren't usually worth saving due to wear and no economincal way to refurb. them.

          What's wrong with the crankshaft and rods?

          Valves are reusable if stem wear is no more than half a mil and grinding leaves enough margin on the head.

          Oil pumps are reusable at least 90 percent of the time, but you can count on "professional" rebuilders replacing them 100 percent of the time, and of those at least half will have too much oil pressure.

          Duke

          Comment

          • Jim H.
            Expired
            • December 15, 2006
            • 146

            #6
            Re: Engine Parts from Rebuild

            When polished, the piston heads make excellent desk paper weights.

            Comment

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

              #7
              Re: Engine Parts from Rebuild

              Originally posted by Terry Buchanan (32872)
              I was spring cleaning my garage recently and ran across engine parts from a professional rebuild of my '68 original 427/390 hp that took place over 7 years ago. I have old pistons, crank shaft, valves, rods, oil pump and a few other things. Is there any reason to keep this stuff. I have not needed it in 7 years so should I pitch it or give back to the rebuilder? Thanks for your replies.

              Terry------


              What sort of crankshaft and connecting rods did the engine builder use in the rebuild? Big $$$$ specialty aftermarket parts or just remanufactured original-type parts? If the latter, your original parts could probably have been similarly rebuilt.

              If an engine has been well cared for (e.g. regular oil changes), crankshafts are almost always re-usable without any journal grinding----just polishing. I'd much rather have an original standard journal size crankshaft than a remanufactured unit that will virtually always be ground undersize, sometimes as much as .030".
              In Appreciation of John Hinckley

              Comment

              • Terry B.
                Very Frequent User
                • August 31, 1999
                • 607

                #8
                Re: Engine Parts from Rebuild

                All,

                I miss spoke about the crankshaft, it was reused. It is the cam shaft that I have in my boxes of stuff. (big difference)

                It sounds like, from the people who responded, that I should hang on to a few of these items and discard the rest.

                Terry
                Terry Buchanan

                Webmaster / Secretary - Heart of Ohio Chapter www.ncrs.org/hoo

                Corvettes Owned:
                1977 Coupe
                1968 Convertible 427/390 (L-36) Chapter Top Flight 2007, Regional Top Flight 2010, National Top Flight 2011
                2003 Electron Blue Coupe
                2019 Torch Red Grand Sport Coupe

                Comment

                • Duke W.
                  Beyond Control Poster
                  • January 1, 1993
                  • 15610

                  #9
                  Re: Engine Parts from Rebuild

                  You can measure the heel to toe dimension of the cam lobes, and if it's only worn a few thou it may be reusable, IF you marked the lifters to which lobe they mated to and the lifter faces are not significantly worn. If not, it's all junk.

                  Duke

                  Comment

                  • John H.
                    Beyond Control Poster
                    • December 1, 1997
                    • 16513

                    #10
                    Re: Engine Parts from Rebuild

                    Originally posted by Jim Hughes (46654)
                    When polished, the piston heads make excellent desk paper weights.
                    Aluminum nitro rods, twisted 90* or so, with a matching piston, make nice desk clocks.


                    RodClock.JPG

                    Comment

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