I've got an extra block on a stand and some heads sitting on the shelf, I'd like to store them on the block instead of the shelf, unfortunately I don't have any old head bolts laying around (thought I did) anyone know what size the head bolts are?

 

going to try several random bolts and I'll post back when I figure it out.

 

head bolts are 7/16" x14 thread with a 5/8 head. the lengths are 1.5", 3.0" and 3.75".

 

Thank you, I've just tried 6 different bolts and not found one yet. I'll get em in the morning.