Does Medusa make a motor that would work in a monster truck on 4 or 5s w/the mmm esc

I plan on keeping things on the lighter side.Right now I have a emaxx 3905,no aluminum,with a hv4.5 that I'm pretty happy with.I'd like some extra torque and a little more speed.But I will either do the erevo or a truggy conversion and pass the maxx to my son.I'd like to carry this motor on with me. I have a 70mph vehicle thats uncontrollable,I don't need 2,but 50 on 5s would sure be nice,and you know how that goes....