1987 - 2004 YAMAHA WARRIOR 350 YFM 350 BIG BORE KIT 366cc & BARE CYLINDER HEAD COMPLETE REBUILD SET

                          366cc BIG BORE CYLINDER KIT UPGRADE YOUR WARRIOR 350 FROM A 350 TO A 366 INCREASED HP AND TOQUE AS SHOWN BY THE DYNO WE HAVE PERSONALLY TESTED 3 OF THESE KITS OVER A 1 YEAR SPAN  TO ENSURE QUALITY WHEN TESTING.  PISTON HAS A TEFLON SIDE COATING AND CERAMIC TOP. THIS KIT FITS THE STOCK CYLINDER HEAD AND CRANKCASE. New "Bare" cylinder head already port and polished. ready to install your valves, springs, rockers and camshaft. we use these same heads in all our warrior builds with our 366 cast or forged big bore cylinder kits. FEATURES: Port and polished intake & Exhaust port. includes camshaft needle bearing already installed. New camshaft bearing retainer and bolts. new head gasket and o-rings for covers. exhaust studs. ready to install your oem or aftermarket parts to make it a fully assembled head. pairs nice with a stage 1 or stage 2 camshaft. KIT INCLUDES: 1X CYLINDER 1X BARE HEAD ( PORT & POLISHED) 1X PISTON 1X RINGS 1X PI