Skip to content
SHIPPING UPDATE: Due to high demand, orders are currently processing in 5-7 business days. Need it faster? Contact us to upgrade to expedited shipping! If you’ve found the item elsewhere or can’t wait, no problem—we completely understand. Just reach out to us, and we’ll cancel your order. Thanks for your patience and support! BRAPPPPPPPPPP!
SHIPPING UPDATE: Due to high demand, orders are currently processing in 5-7 business days. Need it faster? Contact us to upgrade to expedited shipping! If you’ve found the item elsewhere or can’t wait, no problem—we completely understand. Just reach out to us, and we’ll cancel your order. Thanks for your patience and support! BRAPPPPPPPPPP!

400EX 400X XR400R Assembled Cylinder Head Stage 2 Hot Cams Chain Cometic Gasket

by BPRATV
Save 22% Save 22%
Original price $888.89
Original price $888.89 - Original price $888.89
Original price $888.89
Current price $688.89
$688.89 - $688.89
Current price $688.89

14711-KCY-670, 14721-KCY-670 14411-KCY-670, 14431-KCY-670, 14445-KF0-000 14446-KF0-000, 14751-KCY-670, 14761-KG0-003 14451-MBV-000, 14781-HA0-770, 14455-KCY-670 14456-KCY-670, 14775-KCY-670, 14126-KV2-940, 14771-107-020, 14447-KF0-000, 14421-KCY-670, 30-3111, 30-3115, 30-3117, 71016-4, 1043-2, HC82RH2010112, H0402027S, 91002-MN1-671, 91003-KF0-008, 14000-KCY-670

Revitalize your Honda TRX400EX 400X XR400R with a powerful new cylinder head and valve train from BPRATV.

Key features:

  • Complete assembled cylinder head with valves, springs, rockers - bolt-on ready!
  • High performance aftermarket head for more power
  • Includes intake & exhaust valves, springs, retainers, seals
  • Stage 2 Hot Cams Camshaft
  • SKF OEM Upgrade Camshaft Bearings (Both)
  • Cometic Big Bore MLS Head Gasket (Fits 87mm 88mm 89mm)
  • Hot Cams Heavy Duty OEM Replacement Cam Chain
  • Fits all Honda TRX400EX, TRX400X, XR400R models/years
  • Direct OEM replacement - easy installation
  • High quality components for smooth, reliable performance
  • 6 month warranty for peace of mind*

This complete cylinder head package has everything you need for a serious power upgrade. The high performance head flows more air for more power. It includes upgraded components like Hot Cams stage 2 cam, SKF bearings, and Cometic MLS gasket. Direct bolt-on design allows easy installation. Fits multiple Honda sport ATV models for instant horsepower gains. All quality components are designed to work together for smooth, reliable high performance.

Transform your TRX400EX, 400X, or XR400R with this bolt-on cylinder head kit. Get aggressive cams, better airflow, and professional-grade parts for max power output. Easy to install with no special tools needed. Made for Honda enthusiasts who crave more power from their sport ATV or Motorcycle. See a thrilling boost in acceleration and top speed with this must-have cylinder head package!

BPRATV - The Best Parts. The Best Performance. The Best Price.
BRAPPPPPPPPPP!
 More payment options

Compare products

0 of 3 items selected

Select first item to compare

Select second item to compare

Select third item to compare

Compare