What is the main benefit of titanium valve keepers?

Titanium valve keepers, like these from Manley, offer improved strength and are lighter than steel keepers. This can be beneficial in high-RPM or performance engine builds.

What does the 'captive' design mean for these keepers?

The captive design means these keepers are shaped to help prevent them from accidentally coming out of the valve stem groove. It adds an extra layer of security to the valvetrain assembly.

Are these keepers sold individually or as a set?

This part number, 13031T-16, includes a set of 16 valve lock keepers, which is typically enough for a 4-cylinder engine.

Specifications

Brand: Manley Performance
Part #: 13031T-16
UPC: 807298063584

Manley Valve Lock/Keeper, LOC-TI CAPTIVE .3415

Name: Manley Valve Lock/Keeper, LOC-TI CAPTIVE .3415
Brand: Manley Performance
SKU: manley-performance-manley-valve-lock-keeper-loc-ti-captive-3415-t14-880209
Price: 238.46 USD
Availability: BackOrder

$238.46

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. Titanium construction for improved durability.

Key Features

Fits valve stem diameter of .3415 inches.
Made from titanium for improved strength and reduced weight.
Features a captive design to help prevent keepers from coming loose.
Manley Performance is a well-known brand for internal 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

Manley Performance is well-known for making strong internal engine components, and these valve lock keepers are a great example of that. They are designed to securely hold your valve springs in place, ensuring your engine's valvetrain operates correctly. This specific set is the LOC-TI CAPTIVE model, which means they are made from titanium and feature a captive design to help prevent them from coming loose.

The titanium construction offers a notable advantage in terms of strength and weight compared to steel keepers. This can be especially important in high-performance applications where reducing reciprocating mass is key to engine health and power. The captive design is a smart detail that adds an extra layer of security, giving you more confidence that everything will stay put under demanding conditions. They fit a valve stem diameter of .3415 inches, so be sure to check if that matches your application.