Super 7 Bead Loc Valve Locks +.050in

The MANLEY Super 7 Bead Loc Valve Locks with +.050in height increase are precision-engineered valve lock components designed for high-performance engine builds where reliability under extreme conditions is non-negotiable. These hardened steel locks feature a 7-degree taper geometry optimized for 0.311-inch valve stems, providing secure retention while maintaining critical valve train geometry during aggressive cam profiles and sustained high-RPM operation.

The +.050-inch height specification adds critical clearance to accommodate larger valve spring assemblies and rocker arm configurations without binding. Each set contains eight locks finished in black oxide for corrosion resistance and durability. MANLEY's bead-loc design prevents valve locks from spinning or walking during engine operation, a failure mode that can result in catastrophic valve damage. The 7-degree taper engages reliably across the valve stem regardless of minor manufacturing tolerances, ensuring consistent preload without over-clamping that could crack the stem.

These locks are specified for race engines, high-lift cam builds, and performance applications where OEM components cannot tolerate sustained load cycles. They are compatible with any valve system using 0.311-inch stem diameter, making them a direct upgrade path for builders stepping up to competition-grade valve spring rates and aggressive valve events. Proper installation with appropriate keeper grooves and spring preload verification is critical to realize their full performance envelope.

MANLEY is recognized among engine builders and machine shops for manufacturing valve train components to exacting tolerances. These Super 7 Bead Loc Valve Locks represent OEM-grade quality at the specification level, essential for builds targeting consistency and reliability in demanding engine applications where valve train failure carries high cost and risk.