1986-2002 HONDA XR200 DEF RACING STAGE 2 RACE VALVE TRAIN PACKAGE

Description

DEF Racing Stage 2 Valve Train Package: This kit includes a custom camshaft, oversized +1mm high flow valves, and a premium Kibblewhite valve spring kit. The cam and oversize valves work exceptionally well together, providing low-end to peak power gains! Built to withstand rigorous racing conditions, this comprehensive package is already winning vintage races around town.

• Camshaft core is included; no core return required nor accepted

Product Features:

• Camshaft: Upgrades the cam to a needle roller bearing on the journal where it rests in the head. Hard-welded from a new OEM Honda core and precisely ground on a CNC machine.
  • Cam Specifications:
    • Exhaust: Max Lift .371″, Duration @ .005″ 274° @102
    • Intake: Max Lift .373″, Duration @ .005″ 275° @104°
    • No head modifications needed!
• Steel Exhaust Valve: Increased diameter to 26mm (+1.0 mm larger)
  • Valve Stem Size: OEM size of 5.5mm, ensuring compatibility
• Steel Intake Valve: Increased diameter to 31mm (+1.0 mm larger)
  • Valve Stem Size: OEM size of 5.5mm, ensuring compatibility
• Material: Made in the USA from high-quality steel for strength and longevity
• Compatibility: Engineered to work with standard seats and guides; seats must be machined 1mm larger to fit the oversized valves.
  • Use modified piston and racing valve springs!
• Durability: Engineered with a proven design that minimizes stress on the valve train, ensuring longevity and safeguarding against failures for a reliable performance.

For best results, pair this valve train package with a properly ported head to unlock its full potential.