What is the purpose of valve lock keepers?

Valve lock keepers, also known as valve locks, are small but crucial parts that work with valve retainers and springs. They secure the valve stem to the retainer, ensuring the valve stays in place during the engine's combustion cycle and preventing it from dislodging.

What does the '.3135 bead' measurement mean?

The .3135 bead refers to the diameter of the bead on the keeper itself. This measurement is critical for ensuring the keeper properly seats into the groove on the valve stem and mates securely with the valve retainer, creating a stable connection for the valvetrain.

Are these keepers compatible with any valve spring and retainer combination?

These Manley valve lock keepers are designed for a 10-degree retainer angle and have a specific .3135-inch bead diameter. You must ensure your valve retainers and valve springs are compatible with these specifications for proper installation and function.

Specifications

Brand: Manley Performance
Part #: 13153-16
UPC: 807298074474

Manley Valve Lock/Keeper, LOC-10 DEG .3135 BEAD

Name: Manley Valve Lock/Keeper, LOC-10 DEG .3135 BEAD
Brand: Manley Performance
SKU: manley-performance-manley-valve-lock-keeper-loc-10-deg-3135-bead-t14-880433
Price: 97.36 USD
Availability: BackOrder

$97.36

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Manley Performance valve lock keepers. .3135 bead size.

Key Features

Fits Manley valve lock keeper applications.
Designed for a 10-degree retainer angle.
Features a .3135-inch bead diameter for precise fitment.
Well-built for reliable engine operation.
Essential component for valvetrain assembly.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

These are Manley valve lock keepers, specifically the LOC-10 DEG model with a .3135 bead. They are a critical component for your engine's valvetrain, working with the valve springs and retainers to keep the valves securely in place during operation. This particular set is designed for a 10-degree retainer angle and has a .3135-inch bead diameter, ensuring a precise fit with compatible components.

When you're rebuilding an engine or upgrading your valvetrain, the small parts like keepers are just as important as the larger components. Manley is known for making well-built parts for performance applications, and these keepers are no exception. They are made to hold up under the stresses of engine operation, helping to ensure your valves stay timed correctly and your engine runs smoothly. The .3135 bead size is a specific measurement that you'll need to match with your valve retainers for proper installation and function.