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YFZ450 YFZ 450 Big Bore Stroker Crank Stage 3 Web Cams Webcams 500cc Rebuild Kit

$1,699.99

Compatible Vehicles
Submodel Year Make Model
-- 2013 Yamaha YFZ450
-- 2012 Yamaha YFZ450
-- 2009 Yamaha YFZ450
-- 2008 Yamaha YFZ450
-- 2007 Yamaha YFZ450
-- 2006 Yamaha YFZ450
-- 2005 Yamaha YFZ450
-- 2004 Yamaha YFZ450
Limited Edition 2004 Yamaha YFZ450LE
Team Yamaha 2014 Yamaha YFZ450REL
-- 2017 Yamaha YFZ450RSE
Special Edition 2015 Yamaha YFZ450RSE
Special Edition 2014 Yamaha YFZ450RSE
Special Edition 2013 Yamaha YFZ450RSE
Special Edition 2012 Yamaha YFZ450RSE
Special Edition 2011 Yamaha YFZ450RSE
Special Edition 2010 Yamaha YFZ450RSE
Special Edition 2009 Yamaha YFZ450RSE
Custom Graphics 2013 Yamaha YFZ450RW
Custom Graphics 2012 Yamaha YFZ450RW
Special Edition 2007 Yamaha YFZ450SE
Special Edition 2006 Yamaha YFZ450SE
Special Edition 2005 Yamaha YFZ450SE
Special Edition II 2007 Yamaha YFZ450SE2
Special Edition 2008 Yamaha YFZ450SP
Special Edition II 2008 Yamaha YFZ450SP2
Bill Balance Edition 2007 Yamaha YFZ450V
Bill Balance Edition 2006 Yamaha YFZ450V
Custom Graphics 2013 Yamaha YFZ450W
Custom Graphics 2012 Yamaha YFZ450W

FITS ALL YAMAHA YFZ450 MODELS AND YEARS CARB MODEL ONLY!


  • 98mm BP Racing purpose built big bore cylinder
  • Hotrods stroker crank with rod
  • Wiseco JE or CP forged piston**
  • Hi temp piston rings
  • Wristpin
  • Circlips
  • Webcams 80-571 camshafts
  • Head stud kit
  • Clutch kit (fibers, steels, springs)
  • Water pump bearing
  • Transmission bearings
  • Shit cam bearing
  • Crank bearings
  • Counter balancer bearings
  • Complete gasket kit - top and bottom end
  • MLS 98mm big bore head gasket
  • Complete seal kit
  • Valve stem seals
  • Cam chain
  • Stickers

 Everything is new in the original packaging and the manufacturer's warranties apply***.

**Products we sell: At bpracingatv our kits come with the same brand name parts (in many cases they are better) as other rebuild kits you see online but we always include items no one else does to make sure you get as complete of an order as possible.  We want you to spend as little time having so search for parts as possible.  We stock the exact same parts from different companies so that when back orders occur we have an alternate part to send that is the same quality.  This would be the ONLY reason your order might be slightly different when it arrives.  We have bulk pricing available for every item we sell.  Just let us know how many you need!

Returns: Please check your order completely right when you receive it and let us know immediately if there is an issue.  This way we can fix it for your ASAP.  We accept returns within the first 30 days for orders sent back 100% complete and all parts brand new, never installed or prepped for installation, in the original packaging.  Parts that do not meet these requirements are not refundable.

***Warranty: We stand behind all parts we sell 100%.  If after installation there is an issue contact us for a warranty return authorization.  We ALWAYS STRONGLY recommend parts be installed by a qualified, experienced mechanic.  Warranty does not cover failure that is a result of improper installation, tuning, break in, or misuse.  For any warranty to be considered the part(s) in question must first be sent back to us for inspection.  We do not warranty parts not installed correctly nor do we warranty anything based on phone calls, photos, or another mechanic's assessment alone