KIBBLEWHITE - 30-30953 - Black Diamond™ Engine Valve - '06-'09 Honda Electric Start, TRX450R
When a cylinder head rebuild calls for a valve that won't be the weak link, the Kibblewhite Black Diamond (30-30953) for '06-'09 Honda delivers a lightweight, one-piece EV8 stainless steel forging with flow-optimized profiles verified on a computerized flow bench. Its German-process surface infusion outlasts standard chrome and nickel plating against wear and corrosion, and the black nitride-coated stem adds another layer of durability. Engineered with Finite Element Analysis and made in the USA.
Features
- Black Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless Steel
- Lightweight, strong, one piece forging with profiles that provide excellent flow characteristics
- Valve is infused by a special German process to a depth of .002, with a surface build up of .0002 which improves wear properties, reduces friction, and provides resistance to corrosion and wear that is superior to chrome and nickel electrolysis plating
- Each valve is designed using Finite Element Analysis (F.E.A) software, and profiles are tested on a computerized flow bench
- Stems are coated with black nitroneg
- Made in the USA
Specs
- Head Diameter: 1.181"
- Length: 3.310"
- Tulip Angle: 20°
- Units: Each
- Size: Standard
- Stem Diameter: 5.00 mm
- Stem Diameter: 0.1957"
- Head Diameter: 30.00 mm
- Riding Style: ATV
- Application: Exhaust
- Material: Stainless Steel
- Model: Black Diamond™
- Product Name: Valve
Frequently Asked Questions - KIBBLEWHITE - 30-30953 - Black Diamond™ Engine Valve - '06-'09 Honda Electric Start, TRX450R
How do I know if this part fits my vehicle?
Check the fitment information listed on this page against your exact year, make, model, and (where applicable) trim, engine size, or configuration. If your exact vehicle isn't listed, or you're not sure, use the product chat on this page or contact our support team before ordering - we're glad to help confirm fitment.
What does it mean if a product is listed as universal fit?
Universal fit means the product is designed to work across a range of vehicles, not that it's guaranteed to fit every one. Compare the listed measurements, mounting requirements, and connector or hardware specs against your specific vehicle before ordering, since some installations may need additional hardware or minor fabrication.
Where can I find installation instructions for this product?
General installation notes are provided above where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat on this page for questions about difficulty, required tools, or whether professional installation is recommended.
What if I have more questions about this product?
Use the product chat on this page for fitment, specs, installation, and compatibility questions, or contact our support team directly for help before you order.
