What is the purpose of valve locks?

Valve locks, also known as keepers, are small components that fit into a groove on the valve stem. They work with the valve spring retainer to hold the valve spring assembly securely in place on the valve stem, preventing the valve train from coming apart.

Why is the 7-degree angle important for these valve locks?

The 7-degree angle refers to the taper of the valve stem and the corresponding angle of the valve lock. Using locks that match the valve stem angle ensures a proper, secure fit, which is essential for the reliability of the valve train, especially under high RPMs or stress.

What does '8620 steel' mean for durability?

8620 steel is a case-hardening alloy steel commonly used for critical engine components like valve locks and gears. It offers a good balance of surface hardness to resist wear and a tough core to withstand impact and stress, making it a well-suited material for this application.

Specifications

Brand: Manley Performance
Part #: 13098-16
UPC: 807298064963

Manley 7 Degree 8620 Steel Valve Locks (.3133in to .3136in) Machined Bead Set

Name: Manley 7 Degree 8620 Steel Valve Locks (.3133in to .3136in) Machined Bead Set
Brand: Manley Performance
SKU: manley-performance-manley-7-degree-8620-steel-valve-locks-3133in-to-3136in-machi-t14-325462
Price: 88.50 USD
Availability: BackOrder

$88.50

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Manley 7 Degree 8620 Steel Valve Locks (.3133in to .3136in) Machined Bead Set. Essential for proper valve train function in many GM engines.

Key Features

Fits a wide range of GM vehicles including Chevrolet Camaro, Corvette, and Cadillac CTS.
Constructed from durable 8620 steel for strength and longevity.
Features a machined bead for a more secure lock and reduced slippage.
Precisely sized between .3133 inches and .3136 inches for a proper fit.
Designed for 7-degree valve stems.
Manley Performance is a well-known brand in engine components.

⚠️ 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

When you're rebuilding the top end of an engine, especially for performance applications or when replacing worn components, the valve locks are a critical piece. These Manley 7 Degree valve locks are made from 8620 steel, a material known for its strength and durability in high-stress engine environments. They are designed to securely hold your valve springs and retainers in place, ensuring your valve train operates as intended.

This set features a machined bead, which helps create a more positive lock and reduces the chance of slippage under extreme conditions. The precise sizing, ranging from .3133 inches to .3136 inches, is crucial for a snug fit with your valve stems, preventing any unwanted movement. Manley Performance has a solid reputation for producing well-built engine components, and these valve locks are no exception, offering a reliable solution for your engine build.

These valve locks fit a wide range of GM vehicles, including popular models like the Chevrolet Camaro, Corvette, and Cadillac CTS. Ensure you check the full fitment list to confirm compatibility with your specific application.