Check the listing for details. Yamaha Raptor 660 Big Bore 102mm 686 Top End Rebuild Kit Nikasiled Cylinder. Condition: New other (see details). Listed at 439.95 USD. ALL YEARS YAMAHA RAPTOR/RHINO/GRIZZLY 660 TOP END ENGINE REBUILD KIT This Kit is a Aftermarket Aluminum Cylinder that YES, it is Nikasiled ( Like a Raptor 700 Cylinder ). I have been testing this Cylinder for 6 months Now and It Passed with Flying Colors. Be Careful of other Kits out there with CHEAP Studs/Gaskets/ and Chains. Bad Quality Parts can Wreck your Day and Bike. Always Check Ring End Gap before Installing and You will not have a Problem. Thanks INCLUDES: . Nikasiled 660 Cylinder 102mm. Wiseco or CP Piston ( Rings, Pin, Clips ) 102mm 11:1. Cometic or Vertex Gaskets. Valve Stem Seals Included. YES Warrantied Cylinder In Stock Ready to Ship Put in Notes if you have a preference on Piston or Gaskets.