CE Replacement Engine ID - NCRS Discussion Boards

CE Replacement Engine ID

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  • Peter L.
    Expired
    • August 31, 1995
    • 26

    CE Replacement Engine ID

    Car is a 1961 corvette F.I. model. Original short block was replaced under warranty with a 3959532 cast block assy. which is stamped as CE4N34145 . Bottom right side of the block is hand stamped with the following numbers; S 374164. What does this number mean? Second question: bottom flange inline with each cylinder is stamped with a letter, i.e. J or K. What does this mean?

    Any information would be appreciated, thank you
  • Terry M.
    Beyond Control Poster
    • September 30, 1980
    • 15573

    #2
    Re: CE Replacement Engine ID

    Originally posted by Peter Locher (26707)
    Car is a 1961 corvette F.I. model. Original short block was replaced under warranty with a 3959532 cast block assy. which is stamped as CE4N34145 . Bottom right side of the block is hand stamped with the following numbers; S 374164. What does this number mean? Second question: bottom flange inline with each cylinder is stamped with a letter, i.e. J or K. What does this mean?

    Any information would be appreciated, thank you
    In your case Pete I cannot tell you about the stamped numbers, but the letters on the oil pan rail are indicative of the exact cylinder size. After cylinder honing an air gauge precisely measured the cylinder bore diameter and gave the operator size readings that he stamped on the pan rail. These sizes were transmitted to the piston assembly area, along with precise crankshaft rod diameter. The piston/rod assembly area then matched piston sizes with rod bearings to selectively fit the piston/rod assembly to each specific cylinder/crankshaft combination. This obviously was a very labor intensive operation. Both Flint Engine and Tonawanda used this method of engine assembly for over thirty or forty years and many millions of engines.

    More recently, perhaps in the 1990s machining operations became much more precise and today engine assembly involves putting any piston in any hole and as a result robots often handle that task at many engine assembly plants.
    Terry

    Comment

    • Michael W.
      Expired
      • April 1, 1997
      • 4290

      #3
      Re: CE Replacement Engine ID

      Peter-

      The CE program did not start till 1968. The 4 after the CE typically indicates that the engine was assembled in 1974.

      Comment

      • Terry M.
        Beyond Control Poster
        • September 30, 1980
        • 15573

        #4
        Re: CE Replacement Engine ID

        Originally posted by Michael Ward (29001)
        Peter-

        The CE program did not start till 1968. The 4 after the CE typically indicates that the engine was assembled in 1974.
        Good point Mike. It would be interesting to know the date code on the cylinder case.
        Terry

        Comment

        • Peter L.
          Expired
          • August 31, 1995
          • 26

          #5
          Re: CE Replacement Engine ID

          Terry,

          Can you elaborate on where to find the date code on the cylinder case?

          Regards,
          Peter

          Comment

          • Terry M.
            Beyond Control Poster
            • September 30, 1980
            • 15573

            #6
            Re: CE Replacement Engine ID

            Originally posted by Peter Locher (26707)
            Terry,

            Can you elaborate on where to find the date code on the cylinder case?

            Regards,
            Peter
            Terry

            Comment

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

              #7
              Re: CE Replacement Engine ID

              Originally posted by Peter Locher (26707)
              Car is a 1961 corvette F.I. model. Original short block was replaced under warranty with a 3959532 cast block assy. which is stamped as CE4N34145 . Bottom right side of the block is hand stamped with the following numbers; S 374164. What does this number mean? Second question: bottom flange inline with each cylinder is stamped with a letter, i.e. J or K. What does this mean?

              Any information would be appreciated, thank you

              Peter-----


              I don't think this was a warranty replacement. GM block casting 3959532 was a block used for SERVICE-only 283 cid engines. However, that casting number did not exist until very late 1968 or early 1969. That would have been long after the warranty on a 1961 Corvette expired.
              In Appreciation of John Hinckley

              Comment

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

                #8
                Re: CE Replacement Engine ID

                Originally posted by Michael Ward (29001)
                Peter-

                The CE program did not start till 1968. The 4 after the CE typically indicates that the engine was assembled in 1974.
                I have a warranty replacement short block installed in my 1970 Corvette in August 1970. CEOA 47538 block #3970010 D260. This block replaced the V0702CTG engine block that only lasted a few minutes in my new 1970.

                Comment

                • Ronald L.
                  Extremely Frequent Poster
                  • October 18, 2009
                  • 3248

                  #9
                  Re: CE Replacement Engine ID

                  This urbal myth that CE meant a defective engine replaced under warranty, as the preceeding details attest.

                  It will be extremely rare occurances - most of these were simply blown engines replaced later on with something manufactured by CE Chevrolet Engine.

                  Comment

                  • Michael H.
                    Expired
                    • January 29, 2008
                    • 7477

                    #10
                    Re: CE Replacement Engine ID

                    Originally posted by Ronald Lovelace (50931)
                    This urbal myth that CE meant a defective engine replaced under warranty, as the preceeding details attest.

                    It will be extremely rare occurances - most of these were simply blown engines replaced later on with something manufactured by CE Chevrolet Engine.
                    Ronald

                    You are exactly right. The CE stamp does not necessarily mean that the block was replaced under warranty. I think a lot of folks are confused on this. All partial engine assy's after some time in 1968 had the CE stamp.

                    Comment

                    • David L.
                      Expired
                      • July 31, 1980
                      • 3310

                      #11
                      Re: CE Replacement Engine ID

                      Back in the early 1980's Dobles Chevrolet in Manchester, NH, had a NORS 283 engine assembly for sale with the following numbers:

                      Cast. # "3959532"
                      Cast. date "I 23 5" (Sept. 25, 1975)
                      Stampings on the pad: "CE6N23636" ("CE6" = Chevrolet Engine, 1976)
                      and "S0428XCA" ("0428" = April 28th)

                      Dave

                      Comment

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

                        #12
                        Re: CE Replacement Engine ID

                        Originally posted by David Liukkonen (3775)
                        Back in the early 1980's Dobles Chevrolet in Manchester, NH, had a NORS 283 engine assembly for sale with the following numbers:

                        Cast. # "3959532"
                        Cast. date "I 23 5" (Sept. 25, 1975)
                        Stampings on the pad: "CE6N23636" ("CE6" = Chevrolet Engine, 1976)
                        and "S0428XCA" ("0428" = April 28th)

                        Dave
                        Dave -

                        That was a "universal replacement" 283, made at the Saginaw Service Engine Plant.

                        Comment

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