What is the maximum valve lift this kit can handle?

This Manley valve spring and retainer kit is designed to handle a maximum valve lift of .540 inches. This allows for more aggressive camshaft profiles in your build.

Does this kit include valve locks?

No, this specific part number (26165) does not include valve locks. You will need to source those separately to complete the installation.

What makes these springs suitable for high-RPM use?

The springs are made from a chrome-silicon alloy, which provides excellent fatigue resistance and high tensile strength. This ensures they can maintain consistent pressure and control at extreme engine speeds up to 10,000 RPM.

Manley Nissan SR20DE/SR20DET Valve Spring and Retainer Kit (w/o Valve Locks)

Specifications

Brand: Manley Performance
Part #: 26165
UPC: 807298045061

Manley Nissan SR20DE/SR20DET Valve Spring and Retainer Kit (w/o Valve Locks)

Name: Manley Nissan SR20DE/SR20DET Valve Spring and Retainer Kit (w/o Valve Locks)
Brand: Manley Performance
Price: 349.88 USD
Availability: InStock

$349.88

Only 1 left in stock

Fits 1991-2002 Infiniti G20. Manley valve spring and retainer kit designed for high-performance builds.

Key Features

Fits 1991-2002 Infiniti G20, 1995-1998 Nissan 200SX, 1989-1998 Nissan 240SX, 1991-1993 Nissan NX, and 1991-1994 Nissan Sentra.
Chrome-silicon alloy springs offer good fatigue resistance and high tensile strength for consistent valve control.
Titanium retainers are CNC machined to exacting tolerances.
Valve locks are manufactured from heat-treated steel.
Designed to handle aggressive aftermarket camshafts.
Supports engine speeds up to 10,000 RPM.

⚠️ 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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Will this fit your vehicle?

Product Details

Manley Performance is well-known for making strong internal engine components. If you're rebuilding the top end of your Nissan SR20DE or SR20DET engine, this valve spring and retainer kit is a solid option. It's designed to handle aggressive aftermarket camshafts and can support engine speeds up to 10,000 RPM, giving you the stability needed for high-performance builds.

The springs themselves are made from a chrome-silicon alloy, which offers good fatigue resistance and high tensile strength. This means they'll maintain consistent pressure even at extreme engine speeds. The kit includes titanium retainers that are CNC machined for accuracy, and the valve locks are made from heat-treated steel. This combination helps ensure reliable valve control when you're pushing your engine hard.

This kit is specifically designed to work with aftermarket camshafts, so it's a good choice if you're upgrading your engine's breathing. Keep in mind that this particular part number does not include valve locks, so you'll need to source those separately if you don't already have them.