B18A ARP head studs different lengths?

I received my ARP head studs in the mail yesterday. Opened the box to exam them for defects, I immediately noticed that there are 2 that are longer than the other 8. Can anyone confirm if this is correct? I was under the impression that they would all be the same length. I did head studs in an old VW I had and those were all the same length too.

I spoke to a friend of mine that had an B18A he did head studs in, he said he was pretty sure that was correct. Just want to make sure they didn’t goof up on my order. I appreciate any help you guys can provide.

http://honda-tech.com/all-motor-naturally-aspirated-44/can-i-use-ls-arp-head-studs-ls-vtec-2874513/

Thanks, I really appreciate the help.