Honda Cbr 300 Big Bore (305cc)And Ported Head Package Kit

  

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

Stage 2 billet camshaft or stage 3. Head is complete and shimmed for bottom big bore kit. Oem cast 79mm big bore kit with piston. All gaskets necessary for install.

Makes your 300 motor which is a 284cc motor a true 305cc motor. This kit paired up with the 2 exhaust you will make nice power!!

This kit is already assembled and ready to be installed. (Gains of 8-10hp+ from this kit).