102mm 686cc Big Bore Cylinder Fit Yamaha Grizzly 660 2002-2008 YFM660

  High Performance Cylinder (CY1731) This product Complete High-Performance 435cc Big Bore Cylinder The Bore is 102.00mm x 84.00mm The cylinder Displacement 686cc and Compression 10.0:1 This product was tested to use all the aftermarket pistons and gasket kits Ready to install This product does not need any modifications This product is tested to Exceed Original Equipment Standards and Performance REPLACES OEM PART NUMBER(S) 5KM-11310-00-00