Crower 86109B-PR Features:

Precision-machined bead lock keepers for 5/16 in. valve stems 10° taper helps provide stronger locking than conventional 7° locks Standard installed height version, identified by Crower as B series Designed for secure valve stem-to-retainer fit in performance valvetrains

Bead Lock Keepers 5/16 10 5/16 In. Valve Stem, Features:

• Precision-machined bead lock keepers for 5/16 in. valve stems, secure valvetrain retention in high-performance applications
• 10° taper design for stronger keeper-to-retainer engagement than conventional 7° locks, improved locking security
• Standard installed height configuration, black-coded B-series design for consistent valvetrain setup and fitment accuracy
• Pair-pack format with -PR designation, convenient for single-valve service or custom engine assembly requirements
• Crower valvetrain component engineered for reliable valve stem and retainer interface under demanding high-rpm operation