Is their anyway to tell if rod bolts are ARP or OEM? Like do they have a certain part number on them or what? Im talking about the 8mm ls-vtec ones.

 

dont quote me on this but on the kinda flat side opposite of the threads they look like they grinded another angle on it and stamped ARP. and were black. you can kinda see that rounded edge that im talking about i belive its stamped arp right there. i kno the arp bolts i got for my EAGLE h-beam rods infront of me are stamped but their different. the OEM bolts i thought were moreless same color of the rod. hope maybe that helps point you in the right direction.

http://shopping.lightningmotor...9.gif