ZDZ 320B4 NEW!!!!! Flat fourcylinder with displacement 320ccm with fully machined crankcase. Displacement: 319,2 ccm Weight: N/A Bore: 47mm Stroke: 46mm RPM range 1000-8500ot/min Ignition : Proc controlled 4,8-7V Fuel mixture N95+rec. oil: 1:35 Recomm. twinblade props: N/A Recomm threeblade props: N/A