COMP Cams Valve Lock 11/32in Single Groove

If you're rebuilding a stock engine and dealing with lighter valve spring loads, these COMP Cams single groove valve locks are a solid option. They're made from hardened steel and feature a 7-degree angle to match the retainer. It's important to get the right size for your valve stem, and these are specifically for 11/32-inch stems. When installed correctly, there should be a small gap between the two halves of the lock; if they fit together with no gap, they're too large.

The tang on these locks is primarily for temporary positioning until the retainer's taper engages. The retainer then creates a collet effect, binding the lock and retainer together. This system becomes stronger as spring force increases, ensuring a secure fit during operation. These are recommended for street applications where extreme spring pressures aren't a concern.