360 Rod Strength
When I built my 360 it was about $40 cheaper to go with the Eagle SIR I-beam rod than it was to have the machine shop recondition the stock rods and install high strength bolts.
Besides the $40 savings you get a bushed small end for floating pins, and a set of rods that is much much more closely balanced rod to rod than a factory rod. The SIR rod is rated for up to 500 HP too.