Harald Grillhiesl is the boss of the small tuning shop, MMW. He has made a name for himself producing tuning cylinder heads on the mainland European scene. Hardly anyone knows their way around squish bands, compression ratios and combustion chambers like he does. The MMW cylinder heads are produced precisely engineered, with exact angles and a very clean gasket surface area. Years of experience, modifying hundreds -if not thousands- of cylinder heads, is shown in the obvious high quality of these items.
The basis for the PX200 MMW cylinder head is the standard original PIAGGIO part. The combustion chamber is re-milled with a CNC process and so receives a new profile layout. This is designed for an improved relation to the shape of the piston crown, as well as a better fit to the following cylinders bore diameters: MALOSSI Road and Race, POLINI, PINASCO, POLOSSI, and the original PIAGGIO cylinder. We also have long stroke crankshaft cylinder heads available for most cylinder kits so eliminating the need for time consuming experimentation with varying gasket thickness's. Consequently an ideal cylinder head is available for virtually all motor setups. Some come supplied with an O-ring gasket as necessary. Knocking and pinking, those dreaded sounds announcing an imminent heat seizure or worse, is eliminated with the use of this cylinder head model. That is, if the reason for your seizure was an incorrect compression ratio...
Conclusion: Higher performance, knocking and pinking eliminated and a more enduring motor, what more could you wish for?
Aluminium construction/ diameter 68.5-69.5mm/ 57-60mm stroke compatible/ long spark plug thread/ O-ring gasket as per kit
Aluminium, CNC milled combustion chamber, long spark plug thread, squish band 0.0-1.3mm, compression ratios between 1:10.5 – 1:12, O-ring as necessary
SIP-TIP: Do not forget to order new spark plugs, base and head gaskets as well as pack-up plates to fit this cylinder head kit.