Maybe not. If the parallel caps were the OEM design, you may be better to stay with that arrangement. Otherwise, study the ratings of the 60 uF cap and see how if compares to the dual 30's. I like your upsizing the V rating to 330.

My current motor cap woes are a run cap that's a little smaller than the cover, and wasn't secured by the motor rebuilder other than wrapping the cap in foam and Scotch 33 to snug it into the cover. Heat melted the foam, and the vibrating cap eventually fatigued the wires, resulting in burn-off at the crimp terminals. Gonna change that arrangement ASAP.