What is the purpose of valve locks (keepers)?

Valve locks, also known as keepers, are small components that fit into grooves on the valve stem. They work with the valve spring retainer to hold the valve spring assembly together, keeping the valve seated properly in the cylinder head.

What does 'machined' mean for these valve locks?

Machined means these valve locks were precisely shaped using cutting tools. This process ensures tight tolerances and a consistent fit with the valve stem and retainer, which is important for preventing issues like valve float.

Are these valve locks sold individually or as a set?

These are sold as a set, providing the necessary quantity for a complete engine build or repair. It's important to ensure you have the correct number of locks for all your valves.

Specifications

Brand: Manley Performance
Part #: 13090-16
UPC: 807298064123

Manley Valve Lock/Keeper, LOC-5/16 MACHINED

Name: Manley Valve Lock/Keeper, LOC-5/16 MACHINED
Brand: Manley Performance
SKU: manley-performance-manley-valve-lock-keeper-loc-5-16-machined-t14-880408
Price: 106.34 USD
Availability: BackOrder

$106.34

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Manley Performance valve locks, part# 13090-16. Essential for securing your valve train.

Key Features

Manley Performance valve lock set.
Machined construction for precise fitment.
Essential for securing valve springs and retainers.
Designed for reliable valve train operation.

⚠️ 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

Manley Performance is well-known for making strong internal engine components, and these valve locks are no exception. They are a critical part of your engine's valve train, working with the valve springs and retainers to keep everything in place. When you're rebuilding an engine or upgrading your valvetrain, having reliable keepers is essential for proper operation and longevity.

These particular valve locks are machined for a precise fit, ensuring they seat correctly with the valve stem and retainer. This level of detail helps prevent valve float and ensures consistent performance under demanding conditions. They are designed to work with specific valve stem sizes, so it's important to confirm compatibility with your existing setup.