Cylinder head Ø47mm for kit 70cc normal cast iron POLINI on scooter minarelli horizontal air

Ideal in case of breakage, curtain, crack on your breech POLINI 70cc, here is the breech replacement! To tighten to the torque and to assemble with new joints recess! Delivered naked, mounts on the horizontal air. Only on the kit diameter 47mm from POLINI. Frustoconical chamber polished finish, high compression.