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!
Features
Mounts directly into the bolt pattern for a 46AX.
A diagonally-placed needle eliminates the need for a remote needle valve.
The 5-sided, angular head design looks great and significantly increases surface area for better cooling.
Technical Data
Displacement: 0.545 cu in (9 cc)
Bore: 0.91 in (23 mm)
Stroke: 0.85 in (21.5 mm)
Practical rpm: 2,000-17,000
Output: 1.68 hp @ 16,000 rpm
Weight: 14.29 oz (405 g) w/o muffler 18.52 oz (525 g) w/ muffler
Includes: #8 glow plug, 40J carburetor, Power Box E-3071 muffler
