What is the maximum valve lift this kit supports?

This Manley Performance valve spring and retainer kit is designed to handle a maximum valve lift of .500 inches. This specification is important when selecting compatible camshafts for your build.

Does this kit include valve locks?

No, this specific kit (part number 26200) does not include valve locks. You will need to source those separately to complete the installation.

What makes titanium retainers beneficial for high-performance engines?

Titanium retainers are lighter than steel, which reduces the overall mass in the valvetrain. This can help prevent valve float at high RPMs and allows the springs to perform more consistently under extreme conditions.

Specifications

Brand: Manley Performance
Part #: 26200
UPC: 807298118352

Manley Ford / Mazda 2.3L Valve Spring and Retainer Kit (w/o Valve Locks)

Name: Manley Ford / Mazda 2.3L Valve Spring and Retainer Kit (w/o Valve Locks)
Brand: Manley Performance
SKU: manley-performance-manley-ford-mazda-2-3l-valve-spring-and-retainer-kit-w-o-valv-t14-374373
Price: 454.85 USD
Availability: InStock

$454.85

In Stock

Manley Ford / Mazda 2.3L Valve Spring and Retainer Kit (w/o Valve Locks). Handles aftermarket cams and high RPM.

Key Features

Fits Ford EcoBoost/Duratec 2.0/2.3L and Mazda MZR 2.0/2.3/2.5L engines.
Chrome-silicon alloy springs offer exceptional fatigue resistance and high tensile strength for consistent valve control.
Heat-treated aerospace-grade titanium retainers are CNC machined to exacting tolerances.
Includes machined valve locks manufactured from heat-treated steel.
Designed to handle aggressive aftermarket camshafts.
Rated for operation up to 10,000 RPM.

This kit is designed for Ford EcoBoost/Duratec 2.0/2.3L and Mazda MZR 2.0/2.3/2.5L engines. Please verify compatibility with your specific vehicle's engine configuration.

⚠️ 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 building a performance Ford EcoBoost or Duratec 2.3L engine, or a Mazda MZR 2.0L, 2.3L, or 2.5L, getting the valvetrain right is crucial. This Manley Performance Valve Spring and Retainer Kit is designed to give you the stability and precision needed for aggressive aftermarket camshafts and high RPM operation.

These kits use chrome-silicon alloy springs, which are known for their exceptional fatigue resistance and high tensile strength. This means they can handle the demands of racing and high-performance builds, ensuring consistent valve control even at extreme engine speeds. The kit includes heat-treated, aerospace-grade titanium retainers that are CNC machined to very precise tolerances, and the valve locks are manufactured from heat-treated steel. This combination is built to withstand the rigors of demanding engine builds, helping you save time and money by providing a matched set ready for installation.

This kit is specifically designed to work with aggressive aftermarket camshafts and is rated for up to 10,000 RPM. The maximum lift this kit is designed for is .500 inches. Remember that this kit does not include valve locks, so you'll need to source those separately.