Yeah, I know about the rockers--hence the reason why the 6.0L sounded like a tin can with 3 pebbles in it... The International 7.3L was waaaaaay better. After the 7.3L, Navistar kinda went stupid for a while, making one of the $hittiest diesels on the planet. Hell, I would have driven a 6.5L GM diesel before a 6.0L...