It's not *that* loud, as in having to blast the stereo in order to drown out any sounds. The only thing I hear is that singing V8 at WOT.
It's valve train racket (click-click), more pronounced when it's @ sub-zero temps. Then again, sounds are always sharper when it's really cold.
I think a clack-clack would be a "bad" lifter. That would require immediate attention, IMHO.
Very true, could be an exhuast leak, esp. since it's seems more pronounced on the driver's side. When April rolls around, it'll be oil change time -- and I'll see if things quiet down a bit with a heavier weight and warmer temps.
Thanks for the input!