There were no worn out cam lobes from what I seen. all the rockers seemed to have good tension? Its not an exhaust tick its definitely valve train noise cause its missfiring and is having a hard time starting. I have been hearing excessive lifter ticking lately and is why I have 8 new lash adjusters sitting. The reason I didnt put them in is because i the updated rockers as you cant even get the old style it seems they are all the same now.You could have a weak lash adjuster that's not holding the proper pressure on the follower. Also, are any cam lobes worn out? Finally, if an exhaust manifold has any broken bolts (very common), you hear a very distinct 'tick' at cold idle. That tends to go away when the manifolds get hot.
The revised rockers address the issue of internal oil pressure loss with the huge holes the previous ones have. I replaced the originals with newer versions and experienced an oil pressure increase at hot idle, it doubled from around 7-8 psi to 16 psi on an underhood mechanical gauge. The lash adjusters themselves also have been updated for the same reason. Also the newer rockers have a wider roller wheel to better distribute the load on the cam lobe. My stock cams were trashed, I replaced them with HO cams and them replaced those with cams from an 09 Ram.I took both valve covers off and there's no rockers tossed? Kinda strange it's definitely missing and there's a top end ticking. Rock auto doesn't have anything but lash adjusters for the 04 but the rockers definitely look different.
MELLING JB7520 are the ones i am referring to they are usa made. MELLING JB2271 are the ones for my 04 I have 8 of these already.
The 05-08 4.7 lists the same part number as 04 up until 08-13 the numbers change too MELLING JB7520. the difference is 10$ vs 30$ each for oem.
Wondering if I just ordered the 04 style lash adjusters with the updated rockers? the rockers are the same throughout all years and the hole is a different shape vs the ones I have in my engine now.