I have no clue why arp ls1 headstuds are so damn expensive.
Are you planning on boost?
Well I got them, with 12pt nuts, for $310 and the Summit sales rep had a shit-fit when I found that price on Amazon from ARP-proper. Felt better doing these than the $100 China studs; and the length of the bolts just scream failure point. I used OEM head bolts in the TBSS with the Procharger because it is low boost; I am planning on building a high boost 5.3L for it on the side and will stud it.
As for boosting the wagon. Maybe.
But, if this does make it to Drag Week and we have to do a repair I don't want to risk damaging the threads in the block re & reing a head/lifter/whatever.