Super 7 Bead Loc Valve Locks

The Super 7 Bead Loc Valve Locks from MANLEY are precision-engineered retainers designed for high-performance and racing engine applications where valve control under extreme conditions is non-negotiable. These locks secure valve springs to valve stems, preventing unwanted separation during aggressive valve actuation and high RPM operation. Engineered for serious enthusiasts and professional engine builders, this set of eight locks delivers the reliability required in competition engines, street performance builds, and demanding OEM applications.

Each Super 7 Bead Loc Valve Lock features a distinctive 7-degree locking angle geometry that maximizes contact surface area and positive engagement with 0.341-inch valve stems, ensuring zero slippage under dynamic loads. Manufactured from hardened steel with a durable black oxide finish, these locks resist corrosion and wear while maintaining dimensional consistency across multiple heat cycles. The standard-height design accommodates most OEM and aftermarket valve spring configurations, making them compatible with a wide range of cylinder head assemblies. The robust construction and precise manufacturing tolerances ensure consistent performance across all eight pieces in the set.

Professional engine builders, racing teams, and performance enthusiasts rely on Super 7 Bead Loc Valve Locks for rebuilds and upgrades where marginal gains translate to measurable power and reliability. Installation requires precision—proper seating and alignment with the valve stem groove are critical to function. This eight-piece set supports a complete cylinder head assembly, making it ideal for four-cylinder, six-cylinder, or eight-cylinder engine combinations depending on application requirements. Always verify valve stem diameter and spring height compatibility with your specific engine platform before ordering.