I doubt it, Corally, since the price of the endbell kit alone is as much or more as the price cap on an entire ROAR-legal stock motor(the price cap is $40US, I believe). Plus, they also tend to have rules about mixing & matching cans, endbells & arms(so if you have a Trinity Monster arm, it must be with a Monster can & endbell, can't even use one from a Binary, P2K 2, or Green Machine 3, they all MUST match).