RE: hpi engine substitutions?
do a little research on that cen 46 engine and se if you still want it that bad. It is the biggest piece of sh.t I ever had. That goes for the whole cen genesis. do not believe that 5 horses claim, it is total bull..it. I have owned a genesis and a savage. The savage with a picco 26 blew the genesis away. Go to cen racing forum and look up my previous posts on the genesis and its engine. Do your self a favor and get a good 26-28 engine instead.