[rotorwrench]

The 215 wasn't around long before it evolved into the 223. They were reliable and had the advantage of the overhead valves to get a 101 HP rating. Notice that the horse power is pretty close to the 239 flathead V8. I always got a kick out of the glass bowl Holley carb on the early ones. They had plenty of power for the street and weighed less than the flathead V8. They would get off the line pretty well depending on gearing and application.