ARP 8740, 2000, & L19 Rod Bolts

Of course, the tensile strength of different material rod bolts are different:

ARP 8740 190,000 PSI
ARP 2000 210,000 PSI
ARP L19 260,000 PSI

The prices of each materail are way different also. As for engine under 900 HP, rod bolts with 8740 material shall be enough to handle such impact and movement. Of course, with higher grade rod bolts make people more comfortable, but it is not necessary just for hear say.