Description
Valve lock failure is a catastrophic engine event—it leads to dropped valves, bent pushrods, and bent valves that destroy your entire cylinder head. Manley’s 7 Degree Super Valve Locks eliminate this risk with precision engineering and proven durability in high-RPM and forced-induction applications. Whether you’re building a naturally aspirated stroker or a turbocharged race engine, these locks provide the security and reliability your valvetrain demands.
The 7-degree geometry provides superior grip on modern valve stems while distributing load evenly to prevent stem galling. The bead-loc design locks the keepers in place with absolute certainty, giving you confidence that your valvetrain will hold together under extreme conditions.
- 7-degree geometry design
- Bead-loc retention system
- Fits 0.311″ valve stems
- Standard height configuration
- High-strength steel construction
- Natural finish
- Set of 16 locks
- Manley MPN: 13051-8
- Bolt-on installation






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