cutting a roof off a four door is NOT a convertible.....
65 Parisienne convertible.one of 49 built for RHD export market,402BBC, T400, 2500 stally, posi rear, upgraded brakes with front discs, FUEL FAST efi custom built by me.
Don't see anything that length that shape on the Chevrolet. Thought maybe trim on top of the quarter by the rear side window but they are wider and longer. Not much help to you on this one.
Could they be 66 side trim pieces?