When I first built my 1964 Polara, I had access to a 1964 New Yorker 413 that had been rebuilt, but never used, to replace the Canadian 313 that was in it. Over the years, I picked up a set of used 426 Street Wedge pistons that were advertised in Hemmings. We drove the '64 Polara so much, that the old 413 was eventually getting blow-by. I bought a 440 from a friend, that had very low miles on it since a full rebuild. This engine is in my car now. At this same time, I was restoring a 1964 Polara 500 convertible. I had my old 1964 413 block bored out to fit the 426 pistons I already had, and assembled my engine as a 426 Street Wedge clone. This was all 30 some years ago, and chances of finding stuff (pistons) to rebuild a worn 413 have greatly decreased.
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Red engine is 440 dressed up with 426 Street Wedge chrome valve covers and air cleaner. Big blocks of this era were red in Canada.
Turquoise engine is '64 413 poked to 426 with chrome Street Wedge valve covers and '62 300H intake and carbs.
