rod knock? head tick? need insight

[orchris]

afternoon, ive been trying to find this issue I’ve been hearing, took it to triangle speed shop for a quick diagnosis and they said they found nothing wrong, just 4.6 valve train noise. 03 cobra stock besides lt headers, x pipe and stingers. head cooling mod install 2k miles ago . could this be a rod bearing ? head tick? valvetrain or timing related? was told from another shop its rod knock but im iffy on it . only listened to it.
took an oil sample and could not see glitter.
82k miles, video with both sides of car down below.

also have codes
po174-fuel pump?
po1233
po190
common problems w these? just hit 82k miles

pt.1 here
pt.2 here

 

[Arch-enemy]

did you ever find out what the problem was? Mine is making the same noise. Also at 2000 rpm it get louder

 

[Roush6018]

this car definately has the head tick on the drivers side. something with valve seat and exhaust valve has broke and causing the lifter noise. you could take off the drivers side head and have it rebuilt with new lifters, but it is recommended to rebuild both heads and replace all the lifters at the same time.