287 slider cam identification

[schuylersipe]

I have two slider cams for a 287 head.I was wondering if anyone knew what the markings meant on them?The first one; in between lobes 1&2:C20,in between lobes 3&4:nothing,in between lobes 5&6:nothing,in between lobes 7&8:618.The second one;in between lobes 1&2:26,in between lobes 3&4:d2 and peach paint,in between lobes 5&6:nothing,in between lobes 7&8:K776.

[turbovanman²]

The only way to tell is to measure them using a cam doctor or on the car using a degree wheel and a dial indicator.