Manley 12175B-8 Race Series Titanium Intake Valve 1.850" 0.3110" Black Nitride

The Manley 12175B-8 is a premium Race Series titanium intake valve engineered for high-performance racing applications. Featuring a 1.850-inch head diameter and 0.3110-inch stem diameter, this valve is precision-manufactured from aerospace-grade titanium alloy to deliver exceptional strength-to-weight ratio and superior heat dissipation.

Key Features:

• Titanium construction reduces reciprocating mass for increased RPM capability
• Black nitride coating enhances wear resistance and reduces friction
• 1.850-inch head diameter optimized for maximum airflow
• 0.3110-inch stem diameter for precise valve guide fitment
• Manufactured to strict tolerances for race-proven reliability
• Lightweight design improves throttle response and valvetrain stability

Manley's Race Series valves are designed for serious racing engines where weight savings and durability are critical. The titanium construction withstands extreme cylinder pressures and temperatures while maintaining dimensional stability. The black nitride surface treatment provides a hard, low-friction surface that extends valve life in demanding racing conditions.