In theory, a late model motor running EFI should see a fair bit less wear than a similar aged 440 or 360. Just look at all the Magnum motors people pull apart at 200K+ miles that still show crosshatching. Add roller lifters (assuming they don't fail early) and timing chain tensioners and I would expect a G3 to be in way better shape than a 440 pulled out of a Roadrunner in '73. Doesn't mean there aren't failures, only that they have some advantages to a carb'ed motor from the earlier '70's.
Not saying they shouldn't be check. Just that I'm not sure it is like buying a used 440 or 360.
