MAC SUPER33:
YEAR INTRODUCED: September 1954
YEAR DISCONTINUED: September 1956
ENGINE DISPLACEMENT: 3.3 cu. in. (54cc)
NUMBER OF CYLINDERS: 1
CYLINDER BORE: 1.750 in. (44.4mm)
PISTON STROKE: 1.375 in. (35mm)
CYLINDER TYPE: Aluminum with cast iron sleeve
INTAKE METHOD: Reed valve