The lifters on the 4.3 are adjustable. That is most likely all that needs done. As far as the noise, when steel gets hot, it expands, so that is most likely why the noise goes away. I would have it adjusted. If it is a slight tick that goes away, you should be fine on a trip, but it is adjustable.
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Friday, April 29th, 2011 AT 3:42 AM