Vintage Direct Connection parts. Let’s see em!

while we're on the subject and there's a captive audience... is there any veracity to the claim that MP cams used paint stripes to ID them? i have a new SB one here that has no numbers stamped into anywhere.
I was told by some old heads, when Mopar was still Mopar, the stripes had a rhyme and reason. Like a yellow and green stripe meant “x” cam. But somewhere along the line after Iacocca that either changed and/or was no longer public info.