Changing Connecting Rod Bolts.
I have no direct experience with Eagle SIR rods but I have heard from numerous sources that they are crap. You got this engine at a Pick-a-Part. The engine you have is stock except for .040 overbore, correct? And you plan on keeping the stock cam and heads. Stock 5.9s are not known for breaking rod bolts and breaking rods. IMO, I would leave it alone.