Arp stud and nut kit doesn't pull threads or split blocks, bad workmanship does(and I've made many cock ups over the years)
The depth of each hole needs checking very carefully, and if necessary a few mm trimming off the end of the stud, all holes need tapping out and the old congealed oil getting out the bottom of the hole, just put in arp hand tight then slight nip with pliers that's all.
It is ABSOLUTELY VITAL the shoulder of the stud touches home on the block and that it is not resting/stopped going in further due to bottoming out, there is a tiny groove around each hole for the shoulder.
tabetha