Novarossi REX R57HR-3DS .57 5 Port Helicopter Engine with 50357P-358 header . Fits T- rex 6 and other carbon fiber frames.
R57HR3DS Novarossi Engine REX with 3 needle carburetor. Includes new CNC lightened piston. Specifications: 9.35cc, Max power at 18,500 RPM, range 2K - 21K, bore x stroke 23.33 x 21.94, 5 ports, two ball bearings, 16mm turbo crankshaft, 10mm 3 needle carburetor, 435 grams, 10 - 30% nitro. Use head shim kit with high nitro fuels.