The Neu 1515/1y (2200KV) is the exact motor I plan to put in my E-Revo. It should do perfect on 4s lipo.
I am assuming that the finned can will stay a little cooler because it will have more surface area to dissipate heat to, but the Neu is very efficient anyway, so I don't know if it is necessary to use the finned.
I am also wondering if it will work with the RCM Revo motor mount...