Katech LS9 2.165" Titanium Molybdenum Intake Valve

The Katech LS9 2.165" Titanium Molybdenum Intake Valve is engineered as a direct replacement for LS9 cylinder heads, delivering reduced valvetrain mass, improved high-RPM stability, and consistent performance in demanding street and race applications.

Manufactured from premium titanium alloy, this intake valve significantly lowers reciprocating weight compared to conventional stainless steel valves, allowing for improved valve control, faster acceleration, and reduced stress on critical valvetrain components.

Each valve features a Chrome Nitride coating along with a back cut stem with molybdenum coating to provide enhanced wear resistance and durability.

Updated for 2023, this design retains factory lash cap compatibility, maintaining proper valvetrain geometry in OEM and performance-based builds.

Important! These valves are designed for use with bronze valve guides only. Proper guide material is critical to ensure lubrication, heat transfer, and long-term durability.

Key Features

• 2.165" Intake Valve Head Diameter for LS9 Applications
• Lightweight Titanium Construction for Reduced Valvetrain Mass
• Chrome Nitride (CrN) Coating for Increased Wear Resistance
• Back-Cut Stem Profile for Improved Airflow Efficiency
• Molybdenum-Coated Stem for Reduced Friction and Guide Wear
• Designed for Use with Bronze Valve Guides Only
• Retains Factory Lash Cap Compatibility (2023 Update)
• Direct Replacement for LS9 Cylinder Heads

Specifications

• Valve Head Diameter: 2.165"
• Material: Titanium Alloy
• Coating: Chrome Nitride (CrN) and Molybdenum Stem Coating
• Guide Requirement: Bronze Valve Guides Only
• Valve Weight: 81.8g 

Vehicle & Engine Fitment

Vehicle Applications

Chevrolet

• 2009–2013 Chevrolet C6 Corvette ZR1 with LS9 6.2L Supercharged Engine

Engine Applications

• GM LS9 6.2L Supercharged Engines Equipped with Compatible LS9 Cylinder Heads
• Custom LS9 Performance Engine Builds Utilizing Compatible LS9 Cylinder Heads

Important Fitment Notes

• The Vehicle Applications Listed Above Are Representative and Are Not a Complete Fitment List
• Designed as a Direct Replacement 2.165-Inch Titanium Intake Valve for Compatible LS9 Cylinder Heads
• Designed for Use with Bronze Valve Guides Only
• Updated 2023 Design Retains the Factory Lash Cap Configuration
• Chrome Nitride Coating and Molybdenum-Coated Back-Cut Stem Help Improve Wear Resistance
• Verify Valve Diameter, Valve Guide Material, Installed Height, Valve Spring Package, Valve Seal Compatibility, and Valve-to-Piston Clearance Before Assembly
• Not Compatible with Cast Iron or Powdered Metal Valve Guides
• Professional Cylinder Head Machining and Assembly Are Recommended

Why Choose Katech

Katech valvetrain components are engineered from decades of championship-winning engine development, where precision, durability, and repeatability are critical. This titanium intake valve reflects that legacy—combining advanced materials, proven coatings, and exacting manufacturing standards to deliver consistent performance in high-load, high-RPM environments.

Every component is developed with a focus on real-world performance, ensuring compatibility, reliability, and the confidence expected from a name synonymous with elite GM engine programs since 1977.