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OS Max 55 HZ

The engine in excellent working order.

**For request can be completed with muffler tuned pipe (there are different)

FEATURES:

Ideal for 3D flight-power equal to .60 size heli engines

Same mounting bolt pattern and silencer size as the OS 50SX-H Hyper

Dual needle 40L carburetor with four arm throttle lever for use with a variety of servo brands

SPECIFICATIONS:

Displacement: 0.55 cu in (8.93 cc)

Bore: 0.91 in (23 mm)

Stroke: 0.85 in (23.5 mm)

Practical rpm: 2,000-17,000

Weight: 14.39 oz (408 g)

SAB, Goblin, Kraken, RAW, Align, T-Rex, 600N, 600XN, 600 Nitro, OXY, Tron, Thunder Tiger, Raptor 50