The 3.7L has a variable lift valvetrain, so that may have something to do with it. The 4.0L does not.Very good to know. I'm not super familiar with this engine but do know the Titans V8 was based off the V6. I did know there were variations of the engine in different Nissan Vehicles but didn't know what the differences were between them.
I do know the Z's V6 in the 370 isn't known to be very mod friendly if you go for all motor and not forced induction but don't remember exactly why.
Some engines are just good designs and I'm hoping my wife and I get many years out of this truck 👍