1963 Pontiac Bonneville

For 1963 only Pontiac offered the 421 cubic inch Super Duty V8 with two four barrel carburetors, rated at 425 horsepower, as a 2,250 dollar option, whereas the base Bonneville was listed at 3,349 dollars. Bonneville models had more powerful standard V8 engines than other full size Pontiacs, the 389 or 400 cubic inch V8s with four barrel carburetors, rated from 303 to 340 horsepower depending on the year.