Supercharged 420 Cubic Inch, four valve per cylinder, dual overhead cams, Supercharged, dual coil, four row timing chain, with an exhaust cutout, this engine was rated 320 horsepower engine J467. Truly one of, if not, the most powerful and fastest cars of its time. The Gassoway Murphy coachwork body 2224 features a disappearing convertible top that stows in a lidded compartment behind the seats creating a completely smooth body line when in the down position.