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Titanium Exhaust Valves

 
Titanium Exhaust Valves
Engine

Titanium Exhaust Valves

Supertech Titanium Exhaust Valves are engineered for ultra-low mass and precise control at high RPM. With application-specific coatings, hardened tips, and exact seat geometry, they deliver rapid valve response while maintaining reliable sealing for dedicated race builds and select high-performance applications.

Key Benefits

  • Significant mass reduction for quicker valve acceleration and higher RPM potential.
  • Optimized head profiles and swirl-polished surfaces for stable flow.
  • Application-matched coatings and hardened tips for durability.
  • Precision stems for controlled clearances and guide life.
  • OE diameter and oversize options where supported.

Materials & Surface Finish

Titanium Alloy

High-strength, lightweight titanium for reduced inertia and fast valvetrain response in competition use.

Surface Treatments

  • Nitrided stems (by application) to improve wear and scuff resistance.
  • Hardface seat areas and advanced coatings as required for exhaust duty.
  • Swirl-polished heads to smooth the boundary layer and support flow.

Tip & Stem Details

  • Hardened tips or wear caps depending on application.
  • Precision stem finish for consistent stem-to-guide clearance.

Engineering Options

Geometry

  • Flat, dished, and tulip head shapes (by application).
  • Undercut or straight stems as validated.

Sizes

  • OE diameter for stock port geometry.
  • Oversize options for ported heads where supported.

Compatibility

  • Pair with Supertech performance springs and retainers appropriate to your cam and valve mass.
  • Works with performance seat and guide materials as specified by your head builder.

Use Cases

High RPM / Race

Ultra-low mass enables rapid valve motion and increased RPM headroom in competition builds. Select coatings and springs carefully for your duty cycle.

Street / Track Use

Titanium exhaust valves are intended primarily for high-performance use. For sustained high EGT endurance duty, Inconel exhaust valves may be preferred.

Installation Notes

  • Measure guide ID and set stem-to-guide clearance to specification for titanium/coated stems.
  • Cut seats to proper angles and contact width; verify concentricity and contact placement.
  • Check installed height, seat and open pressures, coil bind, and retainer-to-seal clearance.
  • Verify piston-to-valve clearance at intended lift and cam timing.
  • Match spring rates to valve mass and cam profile; follow break-in procedures.

FAQ

Why choose titanium for exhaust valves?

Titanium reduces valvetrain mass, improving acceleration and RPM capability. It is best suited to high-performance builds where weight reduction and response are priorities.

Are coatings required?

Exhaust-duty titanium typically uses coatings or hardface treatments on stems and seat areas to increase wear resistance. Follow the specifications for your application.

Can I use titanium on a street car?

Some high-performance street builds use titanium, but for long-duration high heat or endurance usage, a superalloy (e.g., Inconel) may be more appropriate.

Do I need different springs?

Yes—select springs matched to the reduced valve mass and your cam’s profile to maintain control at RPM.