Would this be the same for a z6, i just got my engine running good as shit, I walk all over ls eg's and crx's, but then two days later I started hearing a knock at around 2-3k so i pulled the motor out in fear of spinning a bearing or throwing a rod. Im not sure on what the knock is.Its dose sound more like a rods knock then a tapping. I just dont know why it would all of a sudden start making this noise, I guess high miles.