GOTGX-7R Go Engine GX-7R .21 7 Port Turbo Racing Engine.

Model: GX-7R
Displacement: 3.45cc
Maximum power: 2.7 hp
Practical RPM Range: 6,000 - 44,000 RPM
Bore / Stroke: 16.26mm / 16.80mm
Ports: 7+2
Crankshaft: 14mm SG
Carburetor: 8mm
Glow Plug Type: Turbo
Exhaust Type: Rear