how much power can a stock rod hold up too.I have heard a few diff. numbers, 500 550. i have 603hp.

I have asked this same ? with different answers as well I believe that our diesels can handle about 650 to 700 but its all about reliable, how you drive it. if you got 700hp and your racing it all the time your probably not going to have a motor anymore. Id say its like nitrous if your squeezing all the time then boom. but if your squeeze here or there you might last a wile