Jed is correct, 216 and EARLY 235s look exactly the same, heads even interchange. I'm running one of these early motors in a 47 coupe. Check the passenger side of the pan, mine had '235' stamped into the side. Only real trouble with the early 235 High Torques is that the compression was very low.
Also, the motor with the 4 bolts around the valve cover would be 54 or later.
