Hey does anybody know if there were any 1962 409 cars that came from the factory with either the 42 or 52 amp aluminum cased alternator. I know alternators were available in 62 but somewhat rare. I had an original 62 Impala SS 327 with A/C back in the 80's and it had a factory alternator. Due to the much lighter weight of the alternator over the generator I would think it would be a performance advantage to have the alternator for racing. Maybe a dealer special order or dealer install? Anybody ever see an original one?