It can work but... you will probably have to cut the crank to get it to work then bolt on the Maxx's flywheel and clutch. HPI's use the long threaded crankshaft and maxxes need the short crankshaft threading. Also I don't think you can use the HPI flywheel and clutch on a Maxx. the HPI flywheel adds soo much length to the engine you would need an extended chassis to make it work on a Maxx.