Features :
- HPI Racing K5.9 Engine 15250
- Fits all versions of the current glow powered HPI Savage
- ABC piston and liner construction, "A"luminum piston with "B"rass cylinder liner that is "C"hrome plated
- Three needle composite bodied slide valve carburetor with 9.5mm diameter inlet
- Twelve fin aluminum heat sink cylinder head, gun metal gray in color

Specifications :
- Displacement: .36 cu in (5.9cc)
- Carburetor Settings-
- High Speed Needle: Flush with groove
- Low Speed and Mid Range Needle: Flush with carb body
- Idle Adjustment Screw: Set after high speed needle is adjusted-set high enough to keep engine running smoothly but not engage the clutch or turn the wheels
- Refer to manual for more detailed carburetor setting info
- Height from Crankcase Bottom to top of Cylinder Head: 4.4" (112mm)
- Height/bottom of Mounting Tab to top of Cylinder Head: 3.8" (97.5mm)
- Distance between Mounting Hole Centers Same Side: 0.87" (22mm)
- Distance between Mounting Hole Centers Opposite Side: 1.5" (38mm)
- Length from Starter to end of Crankshaft: 4.4" (112mm)
- Length from Starter to Front Bearing: 3.3" (83mm)
- Width at Mounting Tabs: 1.8" (45mm)
- Diameter of Cooling Head: 2.4" (60mm)