Honda CRF450R (2002–2006) Black Diamond™ Cylinder Head Service Kit – Kibblewhite 30-33340
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Honda CRF450R 2002–2006 Black Diamond™ Valve Kit w/ C674 Guides & Ti Springs – Kibblewhite Description Pro-level top-end overhaul — the Kibblewhite 30-33340 Black Diamond™ Cylinder Head Service Kit is a complete race-ready package for 2002–2006 Honda CRF450R. Black Diamond™ one-piece forged valves, C674 manganese bronze guides, CrSi dual springs, titanium retainers, Viton seals, and full top-end gasket kit — drop-in performance for MX, supercross, or vintage builds.
What’s Included
- 2x Intake Black Diamond™ Valves (standard)
- 2x Exhaust Black Diamond™ Valves (standard)
- 2x Intake C674 Manganese Bronze Guides
- 2x Exhaust C674 Manganese Bronze Guides
- 2x Intake Titanium Retainers
- 2x Exhaust Titanium Retainers
- 2x Intake CrSi Dual Valve Springs (40 lb seat / 147 lb @ 0.440" lift)
- 2x Exhaust CrSi Dual Valve Springs (70 lb seat / 203 lb @ 0.440" lift)
- 2x H.T. Steel Basewashers (intake & exhaust)
- 2x Viton Valve Stem Seals
- Complete Top-End Gasket Kit (head, base, exhaust, case gaskets, O-rings, washers)
Key Features
- Black Diamond™ Valves — German-impregnated forged stainless, reduced friction & wear
- C674 Bronze Guides — manganese alloy, superior heat transfer, easy reaming
- CrSi Dual Springs — progressive wound (tight end on basewasher), high-RPM stability
- Titanium Retainers — lightweight, max valve control
- Viton Seals — high-temp, oil-resistant, long-life
- Full gasket kit — leak-proof sealing
Fitment
- 2002 Honda CRF450R
- 2003 Honda CRF450R
- 2004 Honda CRF450R
- 2005 Honda CRF450R
- 2006 Honda CRF450R
Warranty Info Backed by Kibblewhite limited warranty. Professional installation required. WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Price & SKU Retail Price: $411.82 SKU: 0926-3120 / 30-33340 Weight: 1.25 lbs Availability: In Stock
📦 Shipping Information
In-stock items ship next business day. ModQuad parts dispatch Monday through Thursday.
Made-to-order and custom powder coat items show their lead time at the top of this page, right next to the truck icon. These are built fresh for you, so timing varies by brand and current backlog.
Need something by a specific date? Call us at 541-668-7503 before ordering and we will check stock and ETA on that exact part. We can often point you to an in-stock alternative from another distributor.
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