7 Degree Super Valve Locks

The 7 Degree Super Valve Locks from MANLEY are precision-engineered components designed for serious engine builders and performance enthusiasts who demand maximum valve control and reliability under extreme conditions. These valve locks secure the valve spring retainer to the valve stem, preventing unintended valve float and loss of preload during high-RPM operation. Proper valve lock geometry is critical to maintaining consistent valve timing and preventing catastrophic engine failure.

MANLEY's 7-degree design optimizes the contact angle between the lock and valve stem groove, reducing radial stress and extending component life while improving seating consistency. The construction is made from precision-engineered steel, ensuring positive engagement without binding, which is critical for applications running aggressive valve spring rates and high valve lift profiles. Manufactured to exacting tolerances, these locks are compatible with MANLEY valve spring retainers.

Professional engine builders, drag racers, and weekend warriors restoring classic vehicles depend on MANLEY valve locks to ensure durability through thousands of combustion cycles. These locks are essential when upgrading to performance camshafts, providing the reliability needed for high-performance engine builds. Their compact profile and lightweight construction make installation straightforward during top-end assembly.