What hp are mopar 440 stock main bolts good for

I would like to see the science of that. All a stud is is a bolt with a nut on the end instead of a hex head. They both do the same thing. No?
With a bolt the torque is transfered to the block, and the bolt pulls the cap down. With studs the torque is applied to the nut, and the cap is pushed into the block.

When studs are being used you have to rehone your mains because the block is destressed and not distorted.