Power Capacitors

[Rocking Donkey]

I have dented part of a bank of Speed Passion power caps so am planning on replacing them with new ones from RS. I was wondering if there were any electronics wizz out there that could advise what would be best to go for. The original is a set of 5 470uF 25V capacitors with 5mm diameter lead pitch and 10mm outer diameter. I'm planning on replacing them with 470uF capacitors that are a little longer/more surface area.

I run 2WD and 4WD buggys and snoring cars with 6.5T or higher wind brushless motors and NiMH cells. Is it worth me going for higher capacitances, say 5x 1000uF? or should I be going for 10V or 16V capacitors rather than 25V?

Any help would be greatly appreciated

Ben