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IMPORTANT NOTICE: Due to increase in fraudulent orders the billing & shipping address must match when placing your order. Thank you for your patience and understanding.
NOTICE: Due to increase in fraudulent orders the billing & shipping address must match when placing your order. Thank you for your patience and understanding.

03+ YZ250 YZ 250 Ported Cylinder Porting Head Complete Top End Rebuild Parts Kit

by Wiseco
Original price $1,299.99 - Original price $1,299.99
Original price
$1,299.99
$1,299.99 - $1,299.99
Current price $1,299.99
FITS ALL 2003 AND NEWER YAMAHA YZ250 TWO STROKE DIRT BIKES
  • Aftermarket 66.40mm cylinder
  • Stage 2 trail/MX port
  • Aftermarket cylinder head
  • Wiseco or Wossner 66.40mm forged piston**
  • Piston rings
  • Wristpin
  • Circlips
  • Top end gasket kit
  • MAXLOCK head stud kit
  • Cylinder to case dowel pins
  • Stickers
Head works with all OEM or after market components.  Piston uses pump or race gas.  Works with stock or after market valve springs.  Everything is brand new.

CONTACT US FOR ALL YOUR HONDA 400EX NEEDS!

Please check your order thoroughly when receiving it.  If for any reason at all you are not 100% happy please contact us right away so we can help resolve the issue.  

*We recommend that this kit be installed by a qualified mechanic with experience working on these types of motors.  Warranty does not include any failure that is a result of improper installation, improper tuning, improper break in, or misuse.  Piston comes with specific instructions for setting the ring gap.  If you do not follow these exactly your motor will fail.  For any warranty to be considered the part(s) in question must first be sent to us and possibly the manufacturer for inspection.  We can not warranty parts based on photos or phone calls alone. 

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