Here is the famous high POLINI engine complete with cylinder head diameter Ø47mm. It offers 74.60cc real in combination with the original crankshaft stroke of 43mm! It has 6 admission transfers and a very special architecture.

The cast iron cylinder is one of the best, it is designed by the great engineers of POLINI. The piston is mounted in two-segment, that is to say that this kit is ultra torque! The compression ratio is increased to 12.6: 1 with the high compression yoke (SP 98 recomanded).

A long transmission and a big carburation will be the minimum to exploit the beast! It comes complete with gaskets, screws, instructions ...

Mounts on :
PIAGGIO APE 50 2T
VESPA PK HP 50
VESPA PK 50
VESPA PK XL 50
VESPA SPECIAL 50