modern 5.2 FI roller engine cylinder ridge ?

The two main reasons for the great wear characteristics for ALL modern engines is modern EFI and modern oil formulations.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^THIS. No more fuel wash when cranking with a miscalibrated carb. Yes, technology has improved in the past 40 years, but the pistons are still riding on a film of oil and not a film of nickel. Better oils and EFI.