Jpr,
The LS6 is not really prone to valve train failures. Without actually hearing the noise it is really hard to say what it may be. You could have a problem with a lifter or a valve spring... The best thing to do is to get a technician to listen to it when it's doing it...
The LS6 is not really prone to valve train failures. Without actually hearing the noise it is really hard to say what it may be. You could have a problem with a lifter or a valve spring... The best thing to do is to get a technician to listen to it when it's doing it...