Manley 11616B-8 Race Master Intake Valve Set Ford 4.6L 5.4L DOHC 37mm Bead Lock

The Manley 11616B-8 Race Master intake valve set includes 8 high-performance stainless steel valves designed for Ford 4.6L and 5.4L DOHC 4-valve modular engines. Each valve features a 37mm (1.457 inch) head diameter, 0.275 inch stem diameter, and 5.339 inch overall length. These valves are equipped with Bead Loc grooves, which provide superior strength and reliability compared to conventional triple-groove designs.

Key Features:

• NK-842 stainless steel construction for exceptional durability
• Chrome stems and hardened tips for enhanced longevity and wear resistance
• Swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency
• Race Master straight stem design for precise valve train geometry
• Bead Loc groove system requires compatible 7° Bead Loc valve locks and retainers (sold separately)
• Engineered for engines operating under 8,000 RPM, ideal for bracket racing, drag racing, oval track, and high-performance street applications

These valves fit Ford 4.6L and 5.4L 4-valve DOHC cylinder heads including B, C, 2003-2004 Cobra, Mach 1, and Navigator applications. Not compatible with Cobra R, Ford GT, or Shelby GT500 cylinder heads. Manley Race Master valves are designed and engineered to withstand the abuse of the track while maintaining reliability for high-performance street use.