Honda Cbr 300 billet (357cc)Big Bore And Head Package Kit

  

Honda cbr300 big bore kit. OEM PORTED BIG VALVE HEAD assembled.

Billet (357cc)big bore kit with piston custom for big valves and big camshafts. All gaskets necessary for install.

1 timing chain tentioner INCLUDED! Makes your 300 motor which is a 284cc motor a true 357cc motor!

This kit paired up with the 2 exhaust you will make nice power!! This kit is already assembled and ready to be installed.

We have made 46hp on 93 octane with this setup! With the proper tuning its definitely possible.