5/16 Valve Lock 7-Degree 4140-CM

The 5/16 Valve Lock 7-Degree 4140-CM by FERREA is a precision-engineered valve retaining component designed for high-performance engine builds. It is particularly beneficial for mechanics working on small-block and LS-based applications, where valve locks play a critical role in maintaining proper rocker arm geometry and preventing valve spring collapse.

Manufactured from 4140 chromium-molybdenum steel, this valve lock offers superior tensile strength and fatigue resistance compared to standard locks. The 7-degree locking angle ensures a tighter engagement with the valve stem groove, which helps reduce micro-movement that can lead to premature wear or valve float. This design is essential for builds that require precise control over valve float and spring preload consistency.

Engine builders can rely on FERREA's quality control for dimensional consistency, allowing for accurate spring pressures without the guesswork associated with inferior aftermarket locks. This valve lock is ideal for applications involving cam swaps and head porting, ensuring enhanced engine reliability during modifications.