The big B-Body received a redesign in 1965 and promptly set an industry-wide all-time annual sales record of over 1 million vehicles, a record that stands to this day. With a wide variety of small and big-block engine choices up to 454 cubic inches, the Impala could do it all.

Creates a considerably hotter spark that lets the flame expand more rapidly in the combustion chamber and a more complete and efficient burn of the air/fuel mixture