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Contents:

-Alpha Plus .21 Dragon IV Nitro Engine

-Alpha P3 (Hot) Turbo Glowplug

-6mm, 6.5mm, 7mm Venturi


Specification:

Displacement:3.5cc
Bore:16.26mm
Stroke:16.8mm
Practical R.P.M.:4000~41000rpm

Weight:about 360g
Ports:3ports
Sleeve:ABC
Crankshaft Diam:14mm diameter
Crankshaft: DEC Crankshaft
Glow Plug Type:Turbo
Exhaust:Rear
Carburetor Diam:9.0mm(Variable)
Case Material:Aluminum
Carburetor:3 Needles

The Dragon IV, is a pre broken-in, 3 port engine designed to our engineers very highest specification. The Dragon IV has the benefit of being easy to tune and within 2-4 tanks, be ready to race due to the out of the box pre broken-in advantages.

The Dragon IV comes with a Ceramic rear engine bearing. 

Recommended exhaust is the Alpha 2159, and P3 plug.