This is a custom designed 1/10th scale engine replica for the tamiya sand scorcher and rough rider, it is highly detailed resembling dual carburetor engine and designed to every srb enthusiast who wants to add scale. The engine is a direct fit to the original chassis without any need for cutting, drilling or sanding. You will need to assemble the engine and paint it according to the instructions. note - If you require a better version of the instruction please email me. The vehicle is not included.