Hi again.

The plan by Ford was to have each of the motors be it's own little color scheme, for some reason. Which, I think is kind of cool, but, you don't see that kind of stuff coming from Ford very often. The 170s were that funky looking reddish orange, the V8s all had the black block, intake and snorkel, but the 260s had the blue valve covers and breather, while the 289s had the gold. But, that all went out the window when Ford realized that they were selling the cars quicker than they could build them, and they could build them pretty quickly.

So, at the begining of the regular 65 model year, they went with everything being the same. Hope that helps.
