6.1 Hemi Internals.

I think Mopar says to replace head and crank bolts. But....

Be careful of the terminology. The old 2.2/2.5 FWD turbo stuff used torque to yield head bolts that actually stretch. The new Hemi stuff is turn to torque (I think) and is completely different. The FWD stuff used a degree of rotation as well, but the bolts are different. The G3 stuff isn't expected to stretch, the FWD stuff was. You didn't use those terms, but I have seen several posts that seem to confuse the 2 and think that because both use a degree of rotation to set the torque, then they must be the same.

In addition, I think the rods are different in that the rod bolt threads into the rod rather than are pressed in with a nut. So replacing the rod bolts with ARP isn't about pressing new bolts in and then resizing the rods, it's just about tossing the old and screwing in new ones.

I think the "replace all bolts" mantra is more about dealerships (and the manufacturer) CYA.