Got the motor tore down yesterday, and the mains are completely shot on one side. but the other side is fine. My guess is that it's from the torque of the motor on the down stroke right? I am not the most experienced person in the world by any means but know a little about this. I took my block to the machine shop to get line honed and after that, judging from my walls and the pistons being worn on that one side I am looking to order .020 bore kit from ford, or somewhere else that has a kit. Does anyone have any experience at this, or have a bored 6.0? Exactly how reliable will this thing be boring it out? not had experience around boring diesels. And with the walls being closer to the water jets will it affect coolant temp a whole lot?Also while doing a little reading up on here, How similar are the cranks to the 6.4? and how hard will it to be to make this thing scream?? I do haul hay in the summers so this is my concern. Thanks guys!!