6.2L Lifter issue again?

[Scott Knowles]

2011 Denali. replaced lifters and Cam at 131K Miles (2 years ago @ $5,700). Yesterday, the ticking noise came back. ARRGH!! Took in for service today to determine the issue again. Not sure I wanna go thru this again. Love this SUV. was hoping to drive it for many miles (like 225K maybe?). Not sure this engine design can handle it. Is this what I can expected on the 6.2l engine? I use full synthetic oil and follow all the maintenance. Not sure why the problem came back after 49K additional miles. I see the 5.3L can have similar lifter issues with the AFM, correct?

 

[kbuskill]

All the AFM engines have that problem.

You can do an AFM/DOD delete kit (cam, lifters, VLOM plate) and be rid of that problem for good.

Makes these engines practically bullet proof.