I have a couple questions for the arp head studs users? Does the arp studs come with the shorter outer bolts and are the treads the same as factory?Also Do your studs fit in the dowels on the block?

Im in the middle of putting my head back on the block. I have some arp head studs that i got from another user on the forum. My problem is all my arp studs are the same size when i the thought the outer bolt are suppose to be shorter.And the studs do not fit in the block where the Dowels are for the head, and the threads do not look the same?

Just wanna figure out if its the studs that are wrong ones.
Any help appreciated.