just my opinion, Im an oem purist and feel that the majority of aftermarket "high performance" parts "CANT" duplicate the reliability/longevity of factory parts. Dont live with the sound of your valvetrain pounding the crap out of contact areas simply because that is "supposedly" how johnson lifters are flawed in design? Order/install the OEM lifters and send the johnson lifters back with the video/sound of their defective lifters and a video/sound of oem lifters.
"Sustained High RPM Operation" is the in the description...IDK...
Maybe in corvette/camaro/etc...
Truck LS3, most of the time in the lower rpm ranges
They "may" have really stiff internals for rpms
Your cam isn't that big.. I would think an oem style lifter would be just fine.
Although, availability is such a ***** with everything these days (due to socialism)
Good luck - went through your 6.2 build thread. Nice work and good luck on solving the issue. I know how you feel on certain sounds like you are experiencing. Drives me nuts.
I went through something similar when dropping a new motor in my 08 Bullitt back in 2018. Glad I did it, proud of it, but I would dread doing it again. The whole reason to swap the bad motor was to sell the mustang, so it was mission accomplished but still....it was a lot of close calls and mini nightmares.