Honda CRF250R/X (2004–2017) Cylinder Head Service Kit – Kibblewhite Black Diamond™

Honda CRF250R/X (2004–2017) Cylinder Head Service Kit – Kibblewhite Black Diamond™ Description Race-proven top-end domination — the Kibblewhite 30-33300 (0926-3116) Black Diamond™ Cylinder Head Service Kit is the ultimate high-performance overhaul for 2004–2017 Honda CRF250R & CRF250X. Featuring Black Diamond™ one-piece forged valves, C674 manganese bronze guides, CrSi dual springs, titanium retainers, Viton seals, and a complete top-end gasket kit — this kit delivers maximum flow, extreme durability, and redline reliability. Rebuild it. Pin it. Win it.

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 (50 lb seat / 145 lb @ 0.350" lift)
• 2x Exhaust CrSi Dual Valve Springs (same specs)
• 2x H.T. Steel Basewashers (intake & exhaust)
• 2x Viton Valve Stem Seals (intake & exhaust)
• Complete Top-End Gasket Kit (head, base, exhaust, case gaskets, O-rings, washers)

Key Features

• Black Diamond™ Valves — German-impregnated, one-piece forged stainless, reduced friction & wear
• C674 Bronze Guides — soft manganese alloy, easily reamed, superior heat transfer
• CrSi Dual Springs — 50 lb seat / 145 lb @ 0.350" lift, high-RPM stability
• Titanium Retainers — lightweight, high-strength, max valve control
• Viton Seals — high-temp, oil-resistant, long-life performance
• Full gasket kit — leak-proof sealing, race-ready

Fitment Fits the following models and years:

• 2004–2007 Honda CRF250R
• 2004–2017 Honda CRF250X

Warranty Info Backed by Kibblewhite limited warranty. Professional installation required. WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Price & SKU Retail Price: $449.95 SKU: 0926-3116 / 30-33300 Estimated Shipping Weight: 1.15 lbs Handling Time: Ships next business day