What is the purpose of valve lock keepers?

Valve lock keepers, also known as valve locks or valve collets, are small components that fit into a groove on the valve stem. They work with the valve spring retainer to keep the entire valve spring assembly securely attached to the valve.

What does 'LOC-TI 10 DEG .3415 BEAD LOC COATED' mean?

LOC-TI refers to the titanium alloy material used. '10 DEG' indicates the angle of the keeper, which is important for matching the retainer. '.3415' is the approximate diameter of the valve stem groove they are designed for, and 'BEAD LOC COATED' describes a feature on the keeper that helps it grip the valve stem.

Are these keepers sold individually or as a set?

These valve lock keepers are typically sold in sets, often enough for a full set of valves (e.g., 16 keepers for an 8-cylinder engine with 2 valves per cylinder). Please check the product details for the exact quantity included.

Specifications

Brand: Manley Performance
Part #: 13161TC-8
UPC: 807298082547

Manley Valve Lock/Keeper, LOC-TI 10 DEG .3415 BEAD LOC COATED

Name: Manley Valve Lock/Keeper, LOC-TI 10 DEG .3415 BEAD LOC COATED
Brand: Manley Performance
SKU: manley-performance-manley-valve-lock-keeper-loc-ti-10-deg-3415-bead-loc-coated-t14-880436
Price: 178.53 USD
Availability: BackOrder

$178.53

On Backorder

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

Manley valve lock keepers for engine builds. LOC-TI 10 DEG .3415 bead loc coated.

Key Features

Fits various engine builds requiring specific valve lock keepers.
Constructed from LOC-TI titanium alloy for strength and light weight.
Features a 10-degree angle compatible with many aftermarket retainers.
Includes a bead loc coating for improved seating and retention.
Manley Performance part number 13161TC-8.

⚠️ 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

If you're rebuilding the top end of your engine, getting the valve train components right is crucial for performance and reliability. These valve lock keepers from Manley are designed to securely hold your valve springs and retainers in place, ensuring proper valve operation under demanding conditions.

Manley has used a LOC-TI material for these keepers, which is a titanium alloy known for its strength and light weight. The 10-degree angle on the keeper is a common specification that works with most aftermarket retainers, and the .3415 bead loc coating helps them seat securely. This well-built component is a solid option for anyone looking for dependable valve train hardware.