Can I use a higher voltage cap in lieu of the 50V?

I'm doing a playfield swap on a power play (that's how I found this thread re: caps) Several caps didn't handle the transition too well. I have .05uF 600V caps I use when re-capping my tube radios- I'm fairly certain I can- just looking for confirmation.
thanks!

Ended up going to radio shack near me and getting all their .047 50v capacitors. The 600v were a little large the left is 600v the right 50v.

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I did see what you meant with the caps sitting near the gi line. I'll be using a brush on insulator where things get close. Thanks for the tip!