ProTek 321B Samurai .21 3-port engine
ProTek R/C’s all-new 321B “Samurai” off-road 3-Port engine offers a short-stroke design, turbo head, rear ceramic bearing and an easy-to-tune carburettor with elliptical venturi insert. Other features include a black-coated crankcase and an ABC piston and cylinder. The handcrafted engine has been built by a world-renown Japanese engine manufacturer, to the specs of A Main’s top pro drivers.
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