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TRX400EX TRX 400EX Head Cylinder 87 mil Big Bore Kit Cover Top End Rebuild

$799.99

FITS ALL HONDA TRX400EX, 400X, AND XR400R MODELS AND YEARS
  • New after market cylinder head - NO VALVES OR SPRINGS HEAD ONLY
  • After market cylinder head valve cover
  • 87mm after market big bore cylinder
  • Wiseco JE or CP forged piston**
  • Hi temp piston rings
  • Wristpin
  • Circlips
  • Top end gasket kit
  • Head stud kit
  • Timing/cam chain
  • 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.