Stock 360 Upgrades for Crusher Cuda?

I forgot, I was also thinking of installing a windage tray or baffle. I have heard that if I change the main cap bolts out for studs, that I would have to have the mains line bored. Any truth to that? I understand that a nut and stud can exert more force than a bolt, due to the the differences in running torque. But, with the proper torque spec, I wouldn't think changing hardware would distort the main caps. Any thoughts FABO?