Kibblewhite Cylinder Head Service Kit – Black Diamond™ Valves & C674 Guides – Honda TRX450R / TRX450ER (2006–2014)

🛠️ Description

Refresh and upgrade your TRX450R or TRX450ER cylinder head with the Kibblewhite Cylinder Head Service Kit. This all-in-one package includes premium Black Diamond™ stainless steel valves, high-performance titanium retainers, CrSi valve springs, and durable C674 valve guides. Combined with a complete top-end gasket kit, this service kit ensures improved reliability, reduced friction, and excellent sealing for high-performance or rebuild applications.

✅ What’s Included

• 2 × Intake Black Diamond™ Valves

• 2 × Exhaust Black Diamond™ Valves

• 2 × Intake C674 Valve Guides

• 2 × Exhaust C674 Valve Guides

• 2 × Intake Titanium Retainers

• 2 × Exhaust Titanium Retainers

• 2 × Intake CrSi Valve Springs

• 2 × Exhaust CrSi Valve Springs

• 2 × Intake H.T. Steel Basewashers

• 2 × Exhaust H.T. Steel Basewashers

• 1 × Complete Top-End Gasket Kit (head gasket, base gasket, exhaust gaskets, o-rings, washers)

📦 Fitment

• 2006–2014 Honda TRX450R

• 2006–2009 Honda TRX450ER (Electric Start)

• 2012–2014 Honda TRX450ER (Electric Start)

🛡️ Warranty Info

Covered under standard Kibblewhite manufacturer warranty.

⚠️ Note: This product is subject to performance parts advertising policies.

🔑 Key Features

• Includes valves, guides, titanium retainers, springs, washers, and top-end gaskets

• Black Diamond™ stainless steel one-piece forged valves with German wear-resistant process

• C674 manganese bronze valve guides – easily reamed for precise fit

• Titanium retainers and high-tensile CrSi springs for performance durability

• Top-end gasket kit ensures a leak-free rebuild

• Intake Valve Seat Pressure: 40 lb | Exhaust: 70 lb

• Open Pressure: Intake 147 lb | Exhaust 203 lb

• Spring Lift: 0.440"