PLANS VIDEOS AIRCRAFT FAQ SHOP NOW! ask a pro contact shopping cart STOL King Ultra Pup Super Pup N3 Pup Stinger Aircraft Parts Main Category : Aircraft Parts- Pups, STOL King, Engine / Engine Parts Mag Drive Puck for two cylinder engine- steel Price: $49.95 Prop Hub-for two cylinder Scat crank Price: $139.95 Scat Crankshaft for 2 cylinder engine Price: $600.00 SCAT Head- for two cylinder engine Price: $375.00 Two Cylinder Mosler Engine Case Price: $400.00