What is the purpose of valve lock keepers?

Valve lock keepers, also known as valve collets, are small components that fit into a groove on the valve stem. They work with the valve spring retainer to keep the valve spring assembly securely attached to the valve, ensuring the valve operates correctly within the engine.

What does the sizing .3110 +.050 mean?

The .3110 measurement refers to the nominal diameter of the keeper where it interfaces with the valve stem. The +.050 indicates an additional allowance or tolerance, often related to the groove size on the valve stem or the retainer, allowing for a precise fit in specific engine builds.

Are these keepers sold individually or as a set?

This product is sold as a set of 16 keepers, which is the standard quantity needed for most V8 engines requiring two keepers per valve.

Specifications

Brand: Manley Performance
Part #: 13085-16
UPC: 807298064109

Manley Valve Lock/Keeper, LOC-S7 .3110 +.050

Name: Manley Valve Lock/Keeper, LOC-S7 .3110 +.050
Brand: Manley Performance
SKU: manley-performance-manley-valve-lock-keeper-loc-s7-3110-050-t14-880401
Price: 97.36 USD
Availability: BackOrder

$97.36

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Manley Performance valve lock keepers. Set of 16.

Key Features

This product includes 16 Manley Performance LOC-S7 valve lock keepers.
The keepers are sized at .3110 inches.
They feature an additional .050 inch allowance for specific applications.
Manley Performance is a well-known brand in the performance engine parts industry.

⚠️ 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

This product includes a set of 16 Manley Performance LOC-S7 valve lock keepers. These keepers are designed to hold your valve springs securely in place, ensuring proper valve train operation. The LOC-S7 series is a popular choice for builders looking for reliable valve control.

These keepers are manufactured with a focus on durability and consistent performance. They are sized at .3110 inches with an additional .050 inch allowance, which is important for matching with specific valve stem diameters and spring retainers during engine assembly. Proper installation of these keepers is crucial for the longevity and performance of your engine's valvetrain.