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- Mounts directly into the bolt pattern for a 46.
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- A diagonally placed needle eliminates the need for a remove needle valve.
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- The 5-sided, angular head design looks great and significantly increases surface area for better cooling.
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ABL™ Technology!
ABL (Advanced Bimetallic Liner) uses two O.S.-developed alloys to provide a durable barrier between the brass liner and piston.
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More muscle with no hassle.
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Increase displacement in your 40-size model the easy way: just drop in a 55AX engine! You'll enjoy more horsepower for swinging bigger props — which means improved 3D, precision and sport flying. Best of all, there's no modifications required! |
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Read RC Universe's Review of the
O.S. Engines O.S. .75 AX |
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Specifications
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Displacement: 0.545 cu. in. (9 cc)
Bore: .91 in. (23 mm)
Stroke: 0.85 in. (21.5 mm)
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Weight: 14.3 oz. (404 g)
Includes: #8 glow plug, 40J carburetor, E-3010 muffler
Recommended Props: 11 x 6, 11 x 7, 12 x 6, 12 x 7, 13 x 6
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