In a message dated 11/21/2010 10:57:49 A.M. US Mountain Standard Tim, wrokit at hotmail.com writes: Also, this engine had full flange bearings, instead of the half flange set-up that I would have expected to see Half-flanged bearings were only used for a short time during 1963. After that all Corvairs had the full-flanged bearing. Regards, Bob Helt