BUILD A BLOCK - Build your own block setup for 1987-2004 Yamaha Warrior 350 & 2005-2013 Yamaha Raptor 350 83mm Wiseco ProX Cometic

83mm BUILD A BLOCK KIT CREATE YOUR OWN CUSTOM 83mm STOCK BORE CYLINDER BY ADDDING YOUR CHOICE OF PISTON & CAM CHAIN TO YOUR ORDER. KIT COMES STANDARD WITH A NEW 83mm CYLINDER BLOCK, COMETIC GASKET, BLOCK O-RINGS, CHAIN TENSIONER & OIL FILTER. ALL YOU NEED TO DO IF PICK YOUR CHOICE OF PISTON AND IF YOU NEED A CAM CHAIN OR NOT.   CHOICE OF PISTON PROX 83mm CAST 9.2:1 (01.2487.000) WISECO 83mm FORGED 10.25:1 (4419M08300) WISECO 83mm FORGED 11:1 (40109M08300)   ADD A PROX CAM CHAIN TO YOUR ORDER TOO.   TO SEE MORE SPECS ON THE PISTON, THE PART NUMBER IS INCLUDED TO DO SO.