Head numbers aren't easy to see, they are underneath. With the intake off you can see them in a mirror under the end intake ports or water crossover. Date code is visible under the valve covers and should start with a 3 to be original. , ie: 3B22, etc.
Since the Sprint was a spring 63 introduction I doubt there are any 1962 castings and the 63 cars aren't built after August.
Really any 65 and earlier engine will look correct and the biggest 63 differences that a lot of cars are missing, are the valve covers and timing cover. It should have the oil filler on the timing cover and the valve covers with no holes. There would be a road draft tube on the back of the intake unless it was a California car.
I think it could be a killer in P/Stick!
