Seller notes

Kibblewhite Black Diamond Intake Valve Conversion Kit for Yamaha YZ450F/YZ450FX Product Details Stainless steel conversion kits include only what's needed to convert your head to the long-life stainless steel Black Diamond intake valvesExtend the life of the valvetrain and intake components by as much as 4x over the OE titanium partsInclude forged one-piece stainless steel intake valves, wound chrome-silicon heat-treated wire valve springs, ultra-light titanium retainers and hardened steel bases...

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