See below for kit compatibility

Crank Shaft

This combo is ideal for low speed crawling or trail running in vehicles weighing up to 9lbs on 2s to 4s

Two type of assembly methods

Ideal as bite goes up on track

HPI Racing - Nitro Star F4.6 V2 Engine, 4.6cc, Slide Carburettor, and Rear Exhaust with a Pullstart HPI109494 See below for kit compatibilityThe F4. 6 V2 features a new crankcase and heatsink design with larger heatsink fins for improved cooling. This new design also makes the engine 37g lighter and 12mm shorter. A new pullstart utilises a one way bearing encased in a large 14mm hex for increased durability. The F4. 6 is the powerplant responsible for the immense speeds and raw torque in the Savage X 4. 6, and now it's available to fit into any Savage or big block monster truck! It