Rod bolts are supposed to have 3 torques before you toss them. First is factory torque, second is taking it apart to balance it and third is the only one you do before you should replace them. I read that somewhere...maybe a urban legend. I broke a rod bolt in a 318 as well or it was never torqued...can't remember. Broke a rod in a 351C too. Windowed the block on that one and I wasnt even running it that hard. I think the trans locked up.
