What is the maximum valve lift this kit can accommodate?

This Manley Performance Valve Spring and Retainer Kit is designed to handle a maximum valve lift of .535 inches. This specification is crucial for ensuring proper clearance and function with aggressive camshaft profiles.

What specific components are included in the 26175K kit?

The 26175K kit includes matched valve springs (part number 22175-24), heat-treated titanium retainers (part number 23175-24), and machined valve locks (part number 13012-8). Spring locators may also be included depending on the specific application.

Are these springs suitable for street use or only racing?

While engineered for high-performance and racing applications, the robust construction and stability offered by these springs make them suitable for aggressive street builds as well. They are designed to provide consistent valve control under demanding conditions.

Specifications

Brand: Manley Performance
Part #: 26175K
UPC: 807298057019

Manley Nissan RB26 Valve Spring and Retainer Kit (with Valve Locks)

Name: Manley Nissan RB26 Valve Spring and Retainer Kit (with Valve Locks)
Brand: Manley Performance
SKU: manley-performance-manley-nissan-rb26-valve-spring-and-retainer-kit-with-valve-l-t14-199313
Price: 679.97 USD
Availability: BackOrder

$679.97

On Backorder

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

Manley Nissan RB26 Valve Spring and Retainer Kit (with Valve Locks). Valve spring kit designed for high-performance RB26 engines.

Key Features

Verified fitment for Nissan RB26 engines.
Includes matched valve springs, heat-treated titanium retainers, and machined valve locks.
Chrome-silicon alloy springs offer exceptional fatigue resistance and high tensile strength.
Designed to handle aggressive aftermarket camshafts.
Capable of supporting engine speeds up to 10,000 RPM.
Titanium retainers are CNC machined to exacting tolerances.

This kit is designed for Nissan RB26 engines. Please consult manufacturer fitment data to confirm compatibility with your specific vehicle.

⚠️ 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 high-performance Nissan RB26 engine, especially one that will see serious track time or aggressive street use, a robust valvetrain is essential. This Manley Performance Valve Spring and Retainer Kit is designed to give you the stability and precision needed to handle demanding engine builds. It takes the guesswork out of selecting compatible components, providing a matched set that works together seamlessly.

The heart of this kit is its chrome-silicon alloy valve springs. These are chosen for their exceptional fatigue resistance and high tensile strength, which means they can maintain consistent valve control even when you're pushing the engine to extreme RPMs, up to 10,000 RPM in many applications. The kit also includes aerospace-grade titanium retainers. These are heat-treated and CNC machined to very precise tolerances, making them strong yet lightweight. You also get the machined valve locks, made from heat-treated steel, ensuring everything stays securely in place under high stress.

This kit is specifically designed to work with aggressive aftermarket camshafts, which often require stronger springs and more durable retainers than stock components can provide. By using this Manley kit, you're setting up your RB26 valvetrain for maximum durability and reliable performance when you need it most. It's a well-built package that addresses the critical needs of a performance engine build.