Valve Lock Set 10-Deg 11/32 +.035

The Valve Lock Set 10-Deg 11/32 +.035 from HOWARDS RACING COMPONENTS is a critical component designed for serious engine builders and high-performance racing applications. These precision valve locks secure the valve spring retainer to the valve stem, preventing unintended separation during extreme combustion events and sustained high-RPM operation. Built for small-block and big-block engines that demand reliability under racing conditions, this set provides the security needed when running aggressive cam profiles and elevated boost pressures.

Each set contains 16 individual locks, manufactured from hardened steel with a black oxide finish for corrosion resistance and durability. The 10-degree angle geometry is engineered to work with standard valve spring retainers, while the 11/32-inch valve stem size accommodates common racing and performance engine builds. The +.035-inch height specification provides additional clearance and engagement surface, ensuring positive lock-to-stem contact and reducing the risk of valve float or lock failure during peak valve lift events. The single-groove design maintains compatibility with standard retainer cups while optimizing locking geometry for maximum holding power.

Engine builders and race teams working with domestic V8 engines—particularly those upgrading valvetrain components or increasing RPM limits—will benefit from the security and performance these locks deliver. Installation requires proper valve spring compressor equipment and familiarity with valvetrain assembly procedures. Because valve locks are stress components exposed to continuous cycling forces, sourcing OEM-quality replacement sets ensures consistent engine reliability season after season. For any serious performance or racing engine build, quality valve locks are non-negotiable insurance against catastrophic valvetrain failure.