Manley 11445TB-8 Titanium Exhaust Valves 1.650" Head Diameter +.500" Length

Designed for high-performance and racing applications, these valves are built to reduce valvetrain mass, improve throttle response, and support aggressive camshaft profiles and extended high-RPM operation.

Key Specifications:

• Valve Type: Exhaust
• Material: Titanium
• Head Diameter: 1.650 in.
• Stem Diameter: 0.3415 in.
• Overall Length: +0.500 in. longer than stock
• Keeper Groove Style: Square Groove

Key Features:

• One-Piece Forged Construction: Forged with grain flow throughout — not a head welded to a stem — for superior strength and durability
• Premium Titanium Alloy: Engineered for the ideal balance of mechanical properties, hardness, ductility, and fatigue strength under high exhaust temperatures
• CNC Precision Machined: Machined in state-of-the-art CNC turning centers and valve stem grinders to exacting tolerances
• Inserted Hard Tips: Hard-inserted valve tips for improved wear resistance and longevity
• Rigorous Quality Control: Each valve undergoes a stringent final inspection process to ensure tight-tolerance delivery and consistent performance
• Lightweight Design: Significantly lighter than stainless steel valves, reducing overall valvetrain mass for quicker valve action and higher RPM capability

These are a special-order, non-returnable item. Manley strongly recommends verifying that all valve guides are properly sized for the listed stem diameter to achieve correct operating clearances prior to installation. Compatible valve locks: Manley P/N 13098-16 (7°) or 13153-16 (10°), depending on spring and retainer selection.