So far, after looking in ARP's catalog for connecting rod bolts, and looking on the JEG's website i've found two part numbers for ARP rod bolts and i'm wondering which one i should get, because they look to be almost the same with the exception that one is 8mm and one is 9mm. Which one should i get, if im trying to build an LS-vtec bottom end?

ARP connecting rod bolt: Part no. 208-6001
-Rod Bolt kit
-1.2, 1.6, and 1.8L
-8mm
http://www.jegs.com/i/ARP/070/208-6001/10002/-1


ARP connecting rod bolt: Part no. 208-6401
-Rod Bolt kit
-Honda/Acura 1.6 & 1.8L
-9mm
-Non-Wave Loc
http://www.jegs.com/i/ARP/070/208-6401/10002/-1