Honing / Surface Grinding

Attempting to restore some panhead rocker blocks.  Surface grind the lowers - Bolt on a top - Sunnen hone the bore til' your check pin fits !  Give 'em .0008-.001 clearance seems to work !  It just sucks holding these damn things when you're honing (I made a handle jig deal) but still a good way to jam a finger, bust a knuckle or loose a fingernail !  But I love it !  Restoration of old H-D parts - the best on mother earth . . .