Hasi tuned 9 Port (Alu Liner)

The engines are totally new and are different from the previous version in the following details:

- New high dissipation and low density aluminium cooling head, to combine functionality and lightweight;
- New crankshaft, with revised timing and balancing;
- New piston and liner, AAC 9 PORTS with high compression piston made from rod;
- New reinforced conrod;

Each engine will have its own dedicated sleeve, which will be perfectly honed inside the crankcase, avoiding dangerous vibrations; the design of the ports has been revised to combine performance and reliability.

Like every Hasi engine, they are numbered one by one and accompanied by a certificate of guarantee and authenticity and the useful engine book.