30 32780 Intake Stainless Conversion Valve & Spring Kit Honda CRF450R 2017 2021 Intake

Features: Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black Diamond intake valves. Extends the life of the valvetrain and intake components by as much as 4x over the OEM titanium parts. Includes forged one-piece stainless steel intake valves, wound chrome-silicon heat-treated wire valve springs, ultra-light titanium retainers and hardened steel bases. Components are created using Finite Element Analysis (F.E.A.) software, as well as proprietary camshaft analysis and spring design software. Specifically designed and engineered for each application. Made in the USA. Kit Includes: • 2x Intake Valves • 2x Basewashers • 2x Valve Springs • 2x Titanium Retainers.