Kibblewhite Black Diamond™ Oversize Intake Valve – Honda TRX400EX / TRX400X / XR400R (34mm EV8 Stainless)

🛠️ Need more airflow? This Kibblewhite Black Diamond™ 34mm oversized intake valve is perfect for high-performance head builds and ported applications. Made in the USA from EV8 stainless steel and precision CNC-machined, it's the go-to upgrade for serious riders pushing for more power.

✅ Features:

• Oversize 34.00 mm Black Diamond™ intake valve

• Forged from EV8 stainless steel for max strength

• CNC-machined and flow-bench tested

• German nitroneg treatment improves wear, reduces friction, and resists corrosion

• F.E.A. (Finite Element Analysis) designed for optimal flow profiles

• Compatible with OEM-style retainers and keepers

• Made in the USA

📦 Fitment:

• Honda TRX400EX Sportrax: 2000–2005

• Honda TRX400EX FourTrax: 1999

• Honda TRX400X: 2009

• Honda XR400R: 1996–2004

Note: Oversize valve requires corresponding head work or ported head

📐 Specs:

• Application: Intake

• Head Diameter: 34.00 mm (1.340")

• Stem Diameter: 5.50 mm (0.2156")

• Length: 102.1 mm (4.020")

• Tulip Angle: 20°

• Material: EV8 Stainless Steel

• Model: Black Diamond™

• Size: Oversize

• Units: Each

• Weight: 0.13 lbs

🛡️ Warranty Info:

• Covered under Kibblewhite’s limited manufacturer warranty

• Professional installation recommended on ported heads