Novarossi .50 engine is also available with ceramic bearings. This model has long lasting ceramic front and rear ball bearings. RPM increases up to 500 RPM are typical.
For tuned pipe operation Model #40350 manifold is required. - High Speed CERAMIC Ball Bearings; Bushed Rod; True ABC Piston Sleeve Design; 4 Intake Ports; Weight 15.5 oz. Power: 2.2 H.P. at 18K. This engine is availble in standard Novarossi Steel Bearings.