I believe they are legally required to provide spare parts for 7 years after production. So we are right at the point where they no longer *have* to provide Gen-1 engines (or Gen-1 side sills, for that matter). I know Chrysler had a few Gen-1 engines left last year. They were never advertised as crate engines, but they were (are?) available to anyone who ventilated their block. I was told once they're gone, they're gone. Maybe JonB or Tator can comment on availability at this point??
However, they are not required to provide ACCESSORIES (car covers, wheel locks, RT/10 spoiler, etc) at all, and that is what they have said they are discontinuing.