 This is the HPI Nitro Star F4.6 Monster Truck Engine. The F4.6 is the power plant responsible for the immense speeds and raw torque in the Savage X 4.6. The F4.6 will fit right into any Savage or big-block monster truck chassis for smile-including wheelie action and roost-tossing wheel spin! The F4.6 features all the race tuning you could want in a big-block monster truck engine. The composite 7.5mm carb is heat-resistant for consistent tuning as the engine warms up, and with 8-port race tuning, you get a huge powerband through the entire RPM range, all the way up to 32,000RPM! With 2.9 horsepower on tap, it really is true that there's no replacement for displacement!
Specifications:
Glow Plug: Cold R5 (HPI #1504)
Displacement: 4.6cc
Bore: 18.68mm
Stroke: 16.6mm
Power: 2.9hp @ 32,000RPM
Carburetor: F1-7.5 (Composite 7.5mm)
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