Cylinder Polini Corsa 70cc cast iron Piaggio Typhoon / Stalker

You want ultimate power for your Piaggio AC engine? We have it – the Polini 70cc Cast Iron Cylinder Kit “Corsa” Piaggio Typhoon / Stalker (Piaggio / Gilera AC).

В комплект входят:
– 70cc Cast Iron Cylinder “Corsa”, with 5 transfer ports and simple, oval exhaust port
– Two-Ring Piston “Corsa”
– High Compression Monobloc Cylinder Head
- Комплект прокладок для монтажа
– Carbon Fiber Reed Petals, 2x (for original reed valve)

Polini based this cylinder kit on their 70cc Cast Iron Sport kit and redesigned it to improve performance and give it more power. More specifically, Polini modified the cylinder’s port timings (longer) and redesigned the shape of the exhaust port resulting in an increase of power up to 10/12hp (with a 17.5mm carburetor and a sports exhaust). The piston was also a modified as a special “Corsa” piston even though it remains a two-ring piston.

Polini 70cc Cast Iron Cylinder Kit “Corsa” Piaggio Typhoon / Stalker is not street–legal.