I ran this motor a bunch before this. Had a saga with the heads leaking through the guides that took a long time to resolve, and probably masked and distracted me from this issue. Finally installed the RHS heads to take care of that.

That being said, I inspected the lifters on several occasions prior when I had the motor torn down for the head issues. No wear was noted.

It's always have had a lot of lifter noise. Tweaked the preload in an attempt to quiet it down some to no avail. It's possible that I over did it.

I used plenty of break in lube. The Comp Cams additive was at oil changes... but not this last one.

Biggest concern now is lifter trash and potential bearing damage.

As far as what cam and lifter package goes in next, I'm not sure. It'll will likely be a similar grind as I really liked the performance. I'll probably be talking with Hughes this weekend in Indy.