Dave -
I believe you misread the chart. "57" and "67" look similar in the chart. Hold "Ctrl" and tap "+" to enlarge it.
To confirm, enter the bulb number in the "bulb search" box
on this website. It will list the specs of the bulb, the 6v or 12v equivalent, and the vehicle application. I used this website in addition to the bulb chart on Tim's website when I researching the bulbs for my '54. Pretty neat site.
EDIT - choose "AC/DELCO" when second window appears to see Chevrolet applications.