This thread talks about the 64.5/66 hood hinge color and then wanders off to other years.
http://www.concoursmustang.com/forum/index.php?topic=16903.15There are a lot of threads on hood hinges for 67/8, but none talk specifically about color.
So instead of polluting the other threads, I'll start this one for this specific set of years.
Anghels Restoration has this tutorial on hood hinge styles and somewhat deals with colors. However, the colors shown in the tutorial appear to show hinges that are stripped or are original and may have lost their original finish.
Jim( jwc66k) shows the finish on his first gen car as a dark black phosphate almost identical to the finish of the early PO bolts:
Richard (67gtasanjose) shows his NOS 67 hinges as a bit darker with less oil (or soaked in):
Ads for Ed's 69 hinges and latch appear to show the dark black as well:
Jeff showed this 65 hinge and although lighting and age are definitely a key, this shows a much lighter finish:
Jeff's 65 pic aligns with the finish I put on my hinges. However after seeing Ed's ad plus going back and viewing dozens of hinges (including Anghels picture of the three very light hinges in the turorial) I find myself more confused than enlightened. So confused that I took my hinges and spent considerable effort removing the Boeshield (that stuff is very hard to remove) in order to darken them up. My stripped of Boeshield hinges are shown in the attachment below.
Based on everything I've seen and read, the darker version of the PO is what's expected? I've gone through some effort to get a tank large enough to do these large hinges, so I hope the answer is yes!