2006 Pontiac Grand Prix lifter and rocker noise after repair.

I recently disassembled down to the lifters because it sounded like the lifter
was making noise. I got down to the lifter and there was no damage on the
lifter or the push rod seating area. I then cleaned and put lubrication on the
parts that i had removed and installed them all back in and torqued the bolts
as needed. after i got it all back together i changed the oil to clean out any
debris that could have fallen in during the repair. started the engine and the
noise was still there but it clears up after a few minutes. The second thing
that i noticed is that the rockers seem to be really loud now i can hear them
all ticking like i do not have oil to them. what could be the cause and solution
to this problem??