| Ok, just the motor ?
916SP donor motor (Case conversion to fit 851 chassis by Baines)
955 high comp pistons
955 barrels
Heads converted to 37mm inlet and 31mm exhaust (from 33/30)
Heads ported, gasflowed and combustion chamber re-shaped
Pistons, Rods and Crank balanced
Lightweight Flywheel
STM Slipper Clutch
Gearbox is standard 916SP | 
Threaded Mode