• Cylinder head and crank cases produced from aircraft grade alloys
• Heavy duty double bearing crankshaft
• Billet aluminum pistons and hardened steel rings
• Hard chromed and lapped cylinder bores
• Hardened steel cams
• Carburetor jet valve incorporating of latest design with a split opening for smooth acceleration
• Zero percent or low nitro (5-10%) fuel with low oil content (5-7% oil/fuel ratio)

A stunning engine with solid performance and reliability – the 7 Cylinder 77cc 4-stroke glow radial engine is designed for larger models, specifically scale applications where the use of a radial engine in a round cowl will provide the ultimate scale look for the modeler’s plane. While providing great looks and sound, it also delivers the dependability and performance of Evolution.