What is the purpose of a valve spring retainer?

A valve spring retainer holds the valve spring in place, preventing it from coming loose. For double spring setups, it also helps manage the spring's compression and motion, especially at higher engine speeds.

Why use titanium for valve spring retainers?

Titanium is chosen for its high strength-to-weight ratio. This means it's very strong to withstand the forces in the valvetrain, but also lightweight, which reduces the overall mass that the camshaft and lifters have to move.

Are these retainers compatible with single valve springs?

These Ferrea retainers are specifically designed for use with double valve springs. Using them with single springs may not provide the correct fit or function, and is not recommended.

Specifications

Brand: Ferrea
Part #: E11021

Ferrea Nissan KA24DE Double Spring 7 Deg Pro CNC Titanium Retainer - Set of 16

Name: Ferrea Nissan KA24DE Double Spring 7 Deg Pro CNC Titanium Retainer - Set of 16
Brand: Ferrea
SKU: ferrea-ferrea-nissan-ka24de-double-spring-7-deg-pro-cnc-titanium-retainer-set-of-t14-416212
Price: 392.19 USD
Availability: BackOrder

$392.19

On Backorder

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

Key Features

Set of 16 Ferrea 7-degree Pro CNC titanium retainers for Nissan KA24DE engines.
Titanium construction offers a strong and lightweight solution for the valvetrain.
CNC machining ensures precise dimensions and a consistent finish.
Designed to work with double valve springs for enhanced high-RPM performance.
Helps control valve spring motion, reducing the risk of coil bind.
A popular choice for performance-oriented engine builds.

Secure CheckoutFast Shipping631-982-0042

About this part

Product Details

If you're rebuilding the top end of your Nissan KA24DE engine for improved performance, you'll want to pay close attention to the valve train. These Ferrea titanium retainers are designed to work with double valve springs, helping to control the spring's motion at higher RPMs. They are CNC machined from titanium, which makes them very strong yet lightweight, reducing overall valvetrain mass. This can lead to improved engine response and durability under stress.

Ferrea is known for making well-built valvetrain components, and these retainers are no exception. The 7-degree angle on the retainer is a specific design choice that matches certain valve guides and spring configurations, ensuring proper alignment and preventing binding. This set includes 16 retainers, enough for a complete 4-cylinder engine. They are a popular choice for builds where reliability and performance at higher engine speeds are critical.