340 K Member ??

The are talking about measurements to tell the difference between the 6 and v-8 mounts . The idler arm really doesn't make a difference in what they are explaining.

I realize that and that`s why I included (quote) "although the motor mountings may be the same". (quote)

There`s going to be somebody out there with a 67 K-member that looks at that picture and says "hey there`s something wrong here".