What is the purpose of valve locks?

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 securely onto the cylinder head, preventing the valve from becoming dislodged.

What does 'Super 7 Degree' refer to?

The 'Super 7 Degree' designation indicates that these valve locks are designed to mate with valve spring retainers that have a 7-degree angle on their seating surface. Using the correct angle is crucial for a secure fit and proper valve spring function.

Are these sold individually or as a set?

This product listing is for a set of one (1) valve lock. For a complete engine set, you will need to purchase multiple units, typically eight for a standard V8 engine.

Specifications

Brand: Manley Performance
Part #: 13080-1

Manley Super 7 Degree Valve Locks 5/16 (.3110) - Set of 1

Name: Manley Super 7 Degree Valve Locks 5/16 (.3110) - Set of 1
Brand: Manley Performance
SKU: manley-performance-manley-super-7-degree-valve-locks-5-16-3110-set-of-1-t14-635058
Price: 5.54 USD
Availability: BackOrder

$5.54

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 Super 7 Degree Valve Locks 5/16" (.3110) - Set of 1. These keepers secure your valve springs.

Key Features

Fits 5/16 inch valve stems with a .3110 inch nominal diameter.
Designed for valve springs with a 7-degree taper.
Set includes one valve lock.
Manley Performance brand component.

⚠️ 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 Super 7 Degree Valve Locks, set of 1, are a critical component for your engine's valvetrain. These keepers, sized at 5/16 inch with a .3110-inch nominal diameter, are designed to securely hold your valve springs in place, ensuring proper valve operation under demanding conditions.

Crafted by Manley Performance, a well-known name in engine components, these valve locks are built to the Super 7 degree specification. This means they are designed to work with valve springs that have a 7-degree taper on their seats. This precise fit is essential for maintaining valve control and preventing spring float, especially at higher RPMs. When rebuilding or modifying an engine, using the correct valve locks ensures the integrity and performance of the entire valvetrain assembly.