[FrankJ]

Keep in mind the blue boxes are amplifications and not actually the rule. Those bolts hold the motor together. While I agree that it can be done safely, it pretty clearly is a modification.

Keep in mind those bolts are probably metric. In either case long small diameter bolts aren't standard stock. Without knowing the strength/grade of the original, how do you know your bolt is stronger? More importantly how would the inspector?

While this is the sort of question the Q&A punts on, If I where going to it, I would ask the question