Features :
- HPI K4.6 High Output Hellfire Engine 15204
- Composite body slide valve carburetor
- High flow 2-stage foam air filter
- Rear exhaust
- Two year limited warranty

Specifications :
- Displacement: 0.28 cu in (4.59cc)
- Bore: 18.6mm
- Stroke: 16.9mm
- Practical RPM: 3,100 - 39,500
- Maximum Horsepower: 2.95 hp @ 38,000 rpm
- Maximum RPM: 41,000
- Carburetor Bore: 9.0mm with 8.0mm and 8.5mm reducer
- Distance Between Mounting Holes Same Side: 0.83" (21mm)
- Distance Between Mounting Holes Opposite Side: 1.5" (38mm)
- Height Bottom of Mounting Tabs to Top of Cylinder Head: 3.8" (97mm)
- Width at Mounting Tabs: 1.8" (45mm)
- Width of Crankcase Below Mounting Tabs: 1.2" (39mm)
- Distance from Front Bearing to End of Crankshaft: 1.2" (30mm)
- Distance from Pull Start to Front Bearing: 3.4" (83.1mm)
- Distance from Center of Engine to Front Bearing: 1.7" (44mm)
- Distance from Center of Engine to Pull Start: 1.5" (38mm)