I bought a 2006 Viper recently and absolutely love it. I drove the car for about 2 months then started hearing what sounds like a lifter tick. I took the car to a mechanic and he said due to the tolerances of the motor he wouldnt worry about it. The noise was still bothering me so I took it to the local Dodge dealer and they told me I needed to replace all the lifters at a cost of $9800. So 2 mechanics with 2 different opinions. I have had a few high performance people look at it and they said its fine just drive it and enjoy it. It is not coming from 1 valve or even 1 side. It seems like its a harmonious tick coming from all 20. My question would be is it normal to hear a lifter tick. I cant hear it at start up but as I drive the car I start to hear it once car warms up. Thank you in advance for any advice.