Manley 11481B-8 Titanium Exhaust Valves 1.900" Bead Loc Groove STD Height

Designed for high-performance and racing applications, these valves deliver significant valvetrain weight savings over stainless steel alternatives, enabling higher engine speeds and compatibility with aggressive camshaft profiles.

Key Features:

• 1.900" Head Diameter — standard (STD) overall length / stock height
• 0.3415" Stem Diameter — precision-ground to exacting tolerances
• Bead Loc® Groove — requires Manley Bead Loc® valve locks (sold separately)
• One-Piece Forged Construction — grain-flow forging eliminates the weak points of head-welded designs
• Aerospace-Grade Titanium Alloy — optimized balance of hardness, ductility, and fatigue strength at elevated temperatures
• Micro-Polished Finish — jewel-like surface eliminates stress risers and maximizes fatigue life
• CNC Machined — produced in state-of-the-art CNC turning centers and valve stem grinders for tight tolerance delivery
• Rigorous Final Inspection — every valve passes Manley's stringent quality control process

Important Installation Notes: These valves use a Bead Loc® keeper groove — standard valve locks are not compatible. Manley Bead Loc® valve locks are required. Tip protection (hard tip cap or equivalent) is also required, as these titanium valves do not include a hardened tip. Verify guide clearances and resize guides as needed prior to installation.

Manley Performance is a trusted leader in performance and racing valve manufacturing, supplying top competitors across drag racing, road racing, and circle track applications. The 11481B-8 is a special-order item and is non-returnable.