.030 5.9 magnum

So o was finishing tearing down the motor and I was taking out the crank bolt so I can pull the harmonic balancer. And this is what the bolt look liked.. it took an impact to get it out.. the crank threads didn't look to messed up hopefully they can get fixed.

View attachment ForumRunner_20130815_215645.jpg

After that I pulled the cam. Can anyone tell me what these numbers mean?


View attachment ForumRunner_20130815_215810.jpg