Manley 11421TB-8 Titanium Intake Valve 1.600" Head +.200" Length

Featuring a 1.600" head diameter and a +0.200" extended stem length over stock, these valves are precision-machined to deliver superior flow, reduced reciprocating mass, and exceptional durability under extreme operating conditions.

Manley's titanium valves are crafted from aerospace-grade titanium alloy, offering a significant weight reduction compared to traditional stainless steel valves. This reduction in reciprocating mass allows engines to rev more freely, improving throttle response and enabling higher RPM operation without sacrificing reliability. The black nitride-treated tip (TB designation) provides enhanced hardness and wear resistance at the valve tip contact area, extending service life in high-load applications.

Key Features:

• Material: Aerospace-grade titanium alloy for maximum strength-to-weight ratio
• Head Diameter: 1.600" for optimized intake flow
• Stem Length: +0.200" over stock for custom or performance cylinder head applications
• Tip Treatment: Black nitride (TB) for superior tip hardness and wear resistance
• Stem Diameter: 5/16" (0.3125")
• Reduced reciprocating mass for improved high-RPM performance
• Precision-machined to tight tolerances for consistent seating and sealing
• Designed for race engines, forced induction builds, and high-performance naturally aspirated applications

Manley Performance has been a trusted name in professional racing and high-performance engine building for decades. The 11421TB-8 titanium intake valve set is an ideal upgrade for builders seeking to maximize engine efficiency, reduce valvetrain mass, and ensure long-term reliability in competitive or high-demand driving environments.