P01 vs P02 - NCRS Discussion Boards

P01 vs P02

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  • David M.
    Very Frequent User
    • September 30, 2004
    • 515

    P01 vs P02

    All,
    I know this has been hashed out here probably more than twice. However either I'm not using the search feature here correctly or it sorely lacks the ability to find this simple query.
    Google and other forums provided conflicting info...of course.

    1st picture:
    Is this a P01 = 68 production only? >edit(I think very possibly)<
    The ribs are rounded off where they meet the center cap? And the center cap is not flush with the turbine fins.
    AG Ralley rims should be under it, not standard black rims w/o the ralley slots? edit>(As stated below Ralley rims were the only wheel offered in 68)<
    Same cross flag center cap as the P02? >edit(Still unanswered)<

    2nd picture:
    P02 = 69-72 Production. edit>(I believe this is correct)>
    The ribs squared off where they meet the center cap. The center cap is flush with the turbine fins.
    Ralley rims were also found under the P02s. edit>(yes as started below)<

    P01 & P02 centers are identical? >edit(Still unanswered)<

    The optional finned wheel cover found on the late 69 and early GM big cars 70-72 Monty Carlos, Caprice, Riviera's etc shared the same outer rim and fins as the Corvette P02. The differences are the center caps. Chevy big cars centers were flat and held on with speed nuts. edited>(corrected for accuracy)<

    The 14" F body Chevy/Buick optional deluxe caps are the same for those two cars with exception of the Buick or Cross Flags. These 14" caps are completely different from the 15" caps. Different turbine fins, different centers and different outer rim profile. Side by side its obvious.

    TX
    Dave

    Edited 13MAY24. I learn as I go. I restore and collect these...
    Attached Files
    Last edited by David M.; May 17, 2024, 12:02 PM. Reason: New info to provide accurate data
  • Mike E.
    Extremely Frequent Poster
    • February 28, 1975
    • 5132

    #2

    Comment

    • Leo G.
      Very Frequent User
      • August 31, 1987
      • 116

      #3
      Re: P01 vs P02

      I am confused. The last photo has what appears to be a Buick crest on the center cap. .???

      Drive safe

      Leo

      Comment

      • David M.
        Very Frequent User
        • September 30, 2004
        • 515

        #4
        Re: P01 vs P02

        All to my point which cap is a P01? Pointed ribs or square? edit 13MAY24>(I do know the square fins are P02 in the above pictures)<

        Mike that's what I understood for 68, AGs only regardless of P01 or not. Good to know 14s are out there too, I'm thinking 70-72 gen 2 Camaros.
        What about 69-73, Ralleys under the PO2s as well?

        Leo correct you are seeing a 14" Buick cap in the last pic. Also Chevy big car caps(set of 4). The Chevy big car and the Buick caps appear to be the same cap structure, outer ring and cast insert, as a P02. Only difference is center.
        Last edited by David M.; May 14, 2024, 09:12 PM. Reason: Updated to provide accurate data

        Comment

        • James G.
          Very Frequent User
          • August 22, 2018
          • 783

          #5
          Re: P01 vs P02

          The outer polished band is different on the Buick cover.
          The outer band differs in that there are multiple ridges on the Buick profile where as the Corvette cover only has a single step on the outside of the outer trim band.
          James A Groome
          1971 LT1 11130 - https://photos.app.goo.gl/zSoFz24JMPXw5Ffi9 - the black LT1
          1971 LT1 21783 - 3 STAR Preservation.- https://photos.app.goo.gl/wMRDJgmyDyAwc9Nh8 - Brandshatch Green LT1
          My first gen Camaro research http://www.camaros.org/forum/index.p...owposts;u=4337
          Posts on Yenko boards... https://www.yenko.net/forum/search.php?searchid=826453

          Comment

          • Tim G.
            Extremely Frequent Poster
            • February 28, 1990
            • 1356

            #6
            Re: P01 vs P02

            The fins come to a point on PO1 hubcaps. They are square on PO2 hubcaps. Late 1968 Corvettes used PO2 hubcaps, but they were still listed as PO1 on the paperwork.

            Comment

            • James G.
              Very Frequent User
              • August 22, 2018
              • 783

              #7
              Re: P01 vs P02

              Another difference
              68 PO1.JPG

              Buick P02.jpg
              James A Groome
              1971 LT1 11130 - https://photos.app.goo.gl/zSoFz24JMPXw5Ffi9 - the black LT1
              1971 LT1 21783 - 3 STAR Preservation.- https://photos.app.goo.gl/wMRDJgmyDyAwc9Nh8 - Brandshatch Green LT1
              My first gen Camaro research http://www.camaros.org/forum/index.p...owposts;u=4337
              Posts on Yenko boards... https://www.yenko.net/forum/search.php?searchid=826453

              Comment

              • David M.
                Very Frequent User
                • September 30, 2004
                • 515

                #8
                Re: P01 vs P02

                Ahh yes I see the differences. Thanks James & Tim. I'm trying to educate myself as I am looking for a set of P01s but Ill take P02s in decent shape.

                The Buick cap is a 14".

                Had a craigslist fella try to BS me he had Corvette P02s until I had him measure, they were 14" with flat centers and the rib feature on the outer rim.

                The 14" are for 70-74 Camaros and Apollos. edit>(Correct)<

                Looks like the closest thing GM made to a PO1/PO2 would be the 15" big car caps. See the set of 4 above.
                Last edited by David M.; May 14, 2024, 09:15 PM. Reason: to provide accurate data

                Comment

                • Tim G.
                  Extremely Frequent Poster
                  • February 28, 1990
                  • 1356

                  #9
                  Re: P01 vs P02

                  I just bought a 1970 and put a set of PO2's on it. A friend had four of them in a box dated 1974 and three of the boxes were never opened. They look great on the right car. I may be a fool, but they were $1,000 for a never mounted set.
                  Attached Files

                  Comment

                  • Ed H.
                    Frequent User
                    • July 19, 2014
                    • 58

                    #10
                    Re: P01 vs P02

                    Great looking car Tim. The P02s do look good on that Monza red.

                    Ed

                    Comment

                    • Tim G.
                      Extremely Frequent Poster
                      • February 28, 1990
                      • 1356

                      #11
                      Re: P01 vs P02

                      Thank you, Ed.

                      Comment

                      • James G.
                        Very Frequent User
                        • August 22, 2018
                        • 783

                        #12
                        Re: P01 vs P02

                        You're no fool, nice used sets, with minor restoration will bring $500-600 easy.
                        The differences would be easy to spot side by side.
                        James A Groome
                        1971 LT1 11130 - https://photos.app.goo.gl/zSoFz24JMPXw5Ffi9 - the black LT1
                        1971 LT1 21783 - 3 STAR Preservation.- https://photos.app.goo.gl/wMRDJgmyDyAwc9Nh8 - Brandshatch Green LT1
                        My first gen Camaro research http://www.camaros.org/forum/index.p...owposts;u=4337
                        Posts on Yenko boards... https://www.yenko.net/forum/search.php?searchid=826453

                        Comment

                        • Blair K.
                          Very Frequent User
                          • September 27, 2012
                          • 170

                          #13
                          Re: P01 vs P02

                          Originally posted by Tim Gilmore (16887)
                          I just bought a 1970 and put a set of PO2's on it. A friend had four of them in a box dated 1974 and three of the boxes were never opened. They look great on the right car. I may be a fool, but they were $1,000 for a never mounted set.

                          I would be interested in buying your PO2s' boxes - let me know. Thank-you.

                          Comment

                          • Tim G.
                            Extremely Frequent Poster
                            • February 28, 1990
                            • 1356

                            #14
                            Re: P01 vs P02

                            Blair, I want to keep them in the event I go back to rally wheels. I'm storing the trim rings and caps in them now.

                            Comment

                            • Sal C.
                              Very Frequent User
                              • November 30, 1984
                              • 430

                              #15
                              Re: P01 vs P02

                              James, the photo of the Buick cap is a 14 inch, hence the difference.

                              Comment

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