Honda 400EX 400X XR400R Assembled Cylinder Head Camshaft HD Cam Chain Kit

Complete Bolt-On Performance Valve Train Upgrade

Revitalize your Honda with the BPRATV Assembled Cylinder Head & Valve Train Kit designed for the TRX400EX, TRX400X, and XR400R. This direct bolt-on performance upgrade delivers increased airflow, stronger acceleration, and reliable power gains with a fully assembled, ready-to-install design.

Key Features & Benefits

Built for riders who demand more power and durability, this high performance aftermarket cylinder head package combines premium components engineered to work together for smooth, aggressive output.

• Fully assembled cylinder head with intake & exhaust valves, springs, retainers, seals, and rockers
• High performance aftermarket camshaft for increased airflow and horsepower
• SKF OEM-upgrade camshaft bearings included (both sides)
• BPRATV Talon heavy duty OEM replacement cam chain
• Direct OEM replacement design for easy installation with no special tools

Compatibility

This performance head kit is engineered to fit multiple Honda sport ATV and motorcycle models across all production years.

• Honda TRX400EX All Years
• Honda TRX400X All Years
• Honda XR400R All Years
• OEM-spec mounting for factory engine cases
• Ideal for stock rebuilds or performance upgrades

Frequently Asked Questions (FAQ)

• Q: Is this cylinder head fully assembled and ready to install?

  A: Yes. The head comes completely assembled with valves, springs, rockers, camshaft, bearings, and cam chain.

• Q: Does this kit require machining or special tools?

  A: No. This is a direct bolt-on OEM replacement designed for straightforward installation.

• Q: Will this increase performance over a stock head?

  A: Yes. The high performance head and camshaft improve airflow for stronger acceleration and power.

• Q: Is there a warranty included?

  A: Yes. This kit includes a 6-month manufacturer warranty against defects.

Why Buy from BPRATV? Trusted Performance Experts

At BPRATV, our promise is unwavering: The Best Parts. The Best Performance. The Best Price. Every component is carefully selected and tested to deliver reliable power and long-term durability. Trust BPRATV to keep your Honda TRX400EX, TRX400X, or XR400R running at its best, every single time.

Upgrade your Honda 400 today and experience serious bolt-on power!

BPRATV - The Best Parts. The Best Performance. The Best Price.

BRAPPPPPPPPPP!

BPRATV LLC