Maybe you folks will have a few answers to my issues...
I have a 4.8 v8 in my truck.. 185k miles (lol).  For the most part
my truck runs fine.  Its basically stock with no modifications other then
bigger tires and a very small lift (about 1" taller then a 1500HD)
basically leveling it (you know how they sit lower in the front).

Problems:
pinging...pretty audible actually.  around 1k-1500 rpm you can hear it.
Dont know if there is a fix or not...only a irritant unless I blow a hole
in the piston. lol.

Oil pressure gauge/low oil pressure.  I've started seeing this recently..
it got pretty cold the past 1.5 weeks and in the morning my truck is at 20#
but after it warms up its at 40-43#.  I dont know whether to attribute
this to the weather or to a faulty gauge.

I prefer to have this thing run for a few months before I decide to put a
6L motor in it.

TIA

Alex