DaveC wrote in
:

Is 160 good enough for this application?


Doubtful, note the post from Hal Murray, about how much line voltage can
vary. (Even at exactly 110V which it likely never is for long, you're pushing
to to within 5V of a dangerous limit and trusting capacitor voltage tolerance
is a Very Bad Idea, unless you're going to stress test samples in multiple
copies of a design).

You might get by for a while if the cap is run as cool as possible, but bear
in mind that the last one failed, and you now have a very good reason to
suspect it failed from being run too close to maximum levels. So leave a
generous margin this time.