Replace the heads with newer replacement versions made after 2008 for that engine...not ones from the later engines, they don’t match and won’t work. 2009 intoduced the VVT Eagle that solves all those issues.
So Eagle head it Is. was just reading on the LX forums that one can swap those on. Should I decided to actually put these into something.
Right now, they can sit in the corner with the others.
But let me ask this. My 07 Durango 5.7, is this something I need to be watching for in it?