High engine kit Ø47mm 75cc POLINI RACING cast iron 6 transfers for scooter VESPA 50cc 2T PK, HP, XL, SPECIAL, PIAGGIO APE ...

Here is the famous high POLINI RACING engine complete with large diameter Ø47mm cylinder head. It offers real 74.60cc in combination with the original 43mm crankshaft stroke! 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, which means that this kit is ultra torquey! The compression ratio is increased to 12.5: 1 with the high compression cylinder head (SP 98 recommended). The differences compared to the normal version are the reinforced and lighter piston, the still improved cylinder head as well as the exhaust diagram which is higher, which makes the kit more powerful at high speed! A long transmission and a large carburation will be the minimum to exploit the beast! It is delivered to you 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