if the 6.2 is a knockin\', don\'t bother rockin\'... I just replaced the head gasket on my 85 6.2 and after getting it going again, it has a knock that I don't remember it having before. It doesn't sound like a lifter, so I thought maybe it's a rod talking. I have good oil pressure, so that rules out con rod bearing, right? It knocks under acceleration, but no during decelleration. Any ideas?