What is the purpose of valve lock keepers?

Valve lock keepers, also known as valve locks or collets, are small components that work with valve retainers to hold the valve spring assembly in place on the valve stem. They are essential for keeping the valve train properly assembled and functioning.

What does the '10 degree bead lock' refer to?

The 10-degree bead lock design refers to the angle of the groove on the keeper and the corresponding angle on the valve stem. This design helps the keeper seat more securely, preventing it from backing out under the stress of engine operation.

What does the '.3110' measurement mean?

The .3110 measurement indicates the specific diameter of the bead on the valve lock keeper. This is a critical dimension that must match the groove on your valve stem to ensure a proper and secure fit. Always verify your valve stem diameter before ordering.

Specifications

Brand: Manley Performance
Part #: 13151T-8
UPC: 807298064369

Manley Valve Lock/Keeper, LOC-10 DEG .3110 BEAD

Name: Manley Valve Lock/Keeper, LOC-10 DEG .3110 BEAD
Brand: Manley Performance
SKU: manley-performance-manley-valve-lock-keeper-loc-10-deg-3110-bead-t14-880429
Price: 117.45 USD
Availability: BackOrder

$117.45

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 lock keepers. These keepers secure your valve springs for reliable engine operation.

Key Features

These valve lock keepers are made from heat-treated steel alloy for durability.
Features a 10-degree bead lock design for a secure fit.
The bead size is .3110 inches, ensuring precise compatibility.
Designed to work with Manley valve springs and retainers.
Helps maintain proper valve train geometry under engine stress.

⚠️ 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 Manley valve lock keepers are made from a tough, heat-treated steel alloy, specifically designed to handle the intense pressures and temperatures inside your engine's cylinder head. They feature a 10-degree bead lock design, which helps them seat securely into the valve stem groove, preventing accidental dislodging even under aggressive engine conditions. This secure fit is crucial for maintaining proper valve train geometry and ensuring your engine runs smoothly and reliably.

When you're rebuilding an engine or performing a top-end overhaul, the small parts like valve keepers are just as important as the big ones. Manley has a solid reputation for making well-built internal engine components, and these keepers are no exception. They're designed to work with Manley valve springs and retainers, ensuring a matched system for optimal performance. The .3110 inch bead size is a specific measurement that ensures a precise fit with compatible valve stems, so double-check your valve stem diameter to make sure you get the right size.