450 3-Cylinder Radial Dual Plug: HH
Specifications:
| Type: | 4-stroke |
| Displacement: | 4.25 cu in (75cc) |
| Bore: | 34mm (1.33 in) |
| Stroke: | 27.6mm (1.08 in) |
| Cylinders: | Three |
| Engine (Only) Weight: | 99 oz |
| Crankshaft Threads: | M10 x 1.25 |
| Benchmark Prop: | 22x12 @ 7,000 rpm |
| Prop Range: | 21x10 - 24x10 |
| RPM Range: | 1,200 to 8,000 |
| Fuel: | 10%-30% nitro - synthetic |
| Mounting Dimensions: | 200mm x 250mm |
| Muffler Type: | Pipe |
| Cylinder Type: | AAC |
| Carb Type: | Barrel - 2-needle valve |
| Crank Type: | Ball bearing |