Seller notes

honda cbr300 big bore kit. OEM PORTED BIG VALVE HEAD assembled Stage 2 billet camshaft or stage 3 Springs and retainers Rockers Head is complete and shimmed for bottom big bore kit Billet 83mm big bore kit with piston All gaskets necessary for install makes your 300 motor which is a 284cc motor a true 341cc 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 8-12 hp+ from this kit)...

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