TRX 400EX 400 400X Kibblewhite +1 Valves Springs Complete Valve Head Rebuild Kit

Take your Honda 400EX, 400X or XR400R to the next level with this complete valve head rebuild kit from Kibblewhite. This high-performance kit gives your engine an extra boost for faster acceleration and higher top speeds.

• Includes Kibblewhite's lightweight race valve springs for increased valve lift
• Features oversized +1mm intake and exhaust valves for improved airflow
• Bronze valve guides and Viton valve seals optimize valve operation
• OEM valve seats ensure perfect fitment
• Keepers / Cotters (4 Pairs)
• Complete kit has everything needed for a professional valve job.

Give your trusty Honda the power gains it deserves. This complete valve kit adds horsepower and torque for superior performance on the trails or track. Easy bolt-on installation. Fits all years of the 400EX, 400X and XR400R. Made in the USA and backed by a 1-year warranty.