Lunati 77004-1 Valve Locks - 7 Degree Steel Keeper Set

The Lunati 77004-1 valve locks are precision-engineered steel valve keepers designed to securely retain valve springs on performance engine builds. These 7-degree valve locks provide reliable retention of the valve spring retainer to the valve stem, ensuring consistent valve train operation under high RPM and performance conditions.

Key Features:

• Premium steel construction for durability and heat resistance
• 7-degree taper design for secure retention
• Precision machined to exacting tolerances
• Compatible with standard valve stem groove configurations
• Suitable for performance and racing applications

Valve locks (also known as valve keepers or valve cotters) are critical components in the valve train assembly. These locks fit into a groove machined into the valve stem and hold the valve spring retainer in place, allowing the valve spring to control valve opening and closing. Lunati's precision manufacturing ensures proper fitment and reliable performance throughout the engine's operating range.