MALOSSI MHR racing crankshaft in a HPC (high primary compression) version.
High quality made and top notch machined racing crankshaft. The crank webs are made as full circle webs so the fiddling with plastic pads is not necessary to achieve a higher primary compression. Makes the crank heavier as well what gives a smoother running engine.
The bearings are high quality racing items as well.
CAST IRON CYLINDER - Technology
- Material: special self-lubricating, wear-resistant, highly refined cast iron alloys, obtained by Shell Moulding gravity die-casting.
- Machining: on numerically controlled high precision machine tools.
- Recalculated heat exchange surfaces.
- Exhaust and transfer ports designed and tested for maximum thermodynamic performance.
- Shape and surface texture dimensional checks.
- Cylinder and piston selected for a 100% fit of 0.010-0.005 mm.
- Checking of all the seals carried out.
PISTON
- Material: special aluminium alloy with high silicon content and low thermal expansion.
- Machining: on numerically controlled machine tools.
- Lightened and strengthened.
- Heat exchange surfaces increased.
PISTON RINGS
- Rings in very strong modular cast iron with ground, wear-resistant, hard chrome metal-spray coating on the contact surface.
HEAD
- Material: special die-cast aluminium alloy.
- Geometry of heat exchange surfaces recalculated and increased (air-cooled models).
- Cooling circuit sections and paths recalculated and resized (liquid-cooled models).
- Machining: numerically controlled high precision machines with diamond tools.
- Surface rust prevention treatment.
NOTICE:
FOR THE PROPER WORKING OF THE KIT IT IS ABSOLUTELY NECESSARY TO USE THE TC UNIT SUPPLIED IN THE KIT AND TO SUBSTITUTE THE PRIMARY GEARS WITH THE HTQ MALOSSI ONE, TOGETHER WITH THE ORIGINAL EXHAUST SYSTEM OR THE MALOSSI ONE. 
