Evolution 45GX(2.6) Gas Engine

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MSRP Price: $699.99
Item#: EVOE45GX
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For large-scale aerobatic and sport pilots, the Evolution® 45GX provides less weight than any other engine in its category, meaning better performance. And it doesn’t sacrifice an iota of power, building on Evolution’s remarkable high-tech features, such as a magnesium case, all-purpose design and proven electronic ignition.

Evolution’s exciting line of gas engines breaks into the popular 50cc class with the new 45GX, designed for 27% scale models.

  • For 50cc 27% scale models
  • Easy-to-start electronic ignition
  • Superior Porting
  • Specially engineered for ease
  • Preset Walbro carburetor
  • Same no-fuss reliability as Evolution's glow engines
  • Includes everything needed for installation


Type: 2 - Stroke
Displacement: 2.60 cu in (43.00 cc)
Bore: 1.49 in (38.00 mm)
Stroke: 1.49 in (38.00 mm)
Cylinders: Single
Engine (Only) Weight: 1290 grams (45.53 oz)
Crankshaft Threads: M10 x 1 mm
Benchmark Prop: 23"x8" Mejzlik @ 6100 rpm
Prop Range: 22"x8" thru 24"x10"
RPM Range: 1,000 - 7,500 rpm
Fuel: Gas/Oil mix 40:1
Muffler Type: Can
HP: 5.2 PS /6,200 rpm
Cylinder Type: Ring
Starting System: Electronic Ignition
Carb Type: Walbro
Crank Type: Ball Bearing


Parts Explosions

Detailed Information

Evolution 45GX Installed in the Extra 260 ARF

Team Tips

Standoff Engine mounts for H9 Extra 260

What is shown in the photograph are the 45mm length stand-offs. This gives a perfect spinner position but does require some slight relief of the firewall to clear the carb. The 50mm spacers cause the carb to completely clear the firewall but it will space the spinner out about an extra 5 mm. (Less than a ¼ inch).