Cylinder sleeves made from centrifugally cast iron alloy. Outside diameter precision centerless ground. Ports cut to precision dimensions and shapes for ease of installation and port match-up. Inside semi-bore diameter must be bored and honed to size piston after installation. Rotax engine type 600 H.O. E-TEC / R.A.V.E exhaust. Std.…
Original cylinder bore is alloy chrome plated, nikasil or electrofused. The cylinder must be bored to accept the new cylinder sleeve.