Straub 100-7778 Valve Locks 7-Degree 8mm Stamped Steel 16-Pack

The Straub 100-7778 valve locks are precision-engineered stamped steel keepers designed for high-performance engine builds. These valve locks secure the valve spring retainer to the top of the valve stem, preventing valve spring dislodgement during engine operation and ensuring reliable valvetrain stability.

Key Features:

• 7-degree taper angle for optimal load distribution across the spring retainer
• 8mm valve stem diameter compatibility, ideal for GM LS and LT engine applications
• Standard install height design
• Stamped steel construction with natural finish for reliable performance
• Single radius groove design for secure engagement with valve stem

Valve locks, also known as valve keepers, work in pairs to grip the valve stem and secure the spring retainer in place. The 7-degree taper provides excellent retention characteristics while spreading spring pressure evenly across the retainer surface. These components are critical for preventing catastrophic valve failure, especially in performance applications where increased spring pressures and higher RPMs demand stronger, more precise valvetrain components. Compatible with stock LS engine retainers and commonly used in both OEM replacement and performance upgrade applications.