hey joshua,wait and see mate,i can tell you now there is an extra 3HP gain,so if you do get an engine you will see what i mean,ok.....Glen the cylinders are a 5 port and also 6 port and they are an SPS type,all other parts that are made are all interchangeable with bzm,i will know alot more as soon as i have the gear. Morty all rims can be bought complete or seperste hubs,etc and colors are variuos fom blue to red,gold titanium,grey etc.....