Have seen no cam lifter problems on any of these posts on 3 different discussions on 2016 - 2020 engines. Perhaps they have not reached l00k+ or the changing of lifters in 2016 helped in some way. Can see how the repair or replacement is costly, but then wondered if the efficiency of this small block 5.7 and savings on gasoline over this many miles with the eco engine is equal to repairs. The Chevy vortex 5.3 which gets great millage tends to blow up frequently around l00k and cost 6k to replace the engine which should not happen also. I've recently bought a 2019 ram 5.7 but only have a 75k mi. warranty and hope the same issue with lifters/cam does not happen but after reading all these posts I wonder if I should sell it before it reaches l00k. Traded in a low mileage Nissan frontier with 20k and hope I do not regret doing so.