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

Manley Performance Valve spring and Retainer Kits take the guess work out of making your valvetrain race-ready. Engineered for maximum durability, stability, and precision in high-performance and racing applications, these chrome-silicon alloy springs provide exceptional fatigue resistance and high-tensile strength, ensuring consistent valve control at extreme RPMs. Save time and money with these kits, featuring premium springs, retainers, designed to handle aggressive aftermarket camshafts.

-   Includes matched Valve Springs, Retainers, and Locks (if part number ends in "K"). Spring Locators included in some applications.
-   Includes 7 Machined Valve Locks manufactured from the premium quality heat treated steel
-   Heat treated aerospace grade titanium retainers CNC machined to exacting tolerances
-   Designed to handle aftermarket camshafts and up to 10,000 RPM

This Part Fits:

Year

Make

Model

Submodel

1991-1996,1999-2002

INFINITI

G20

Base

1994-1996,1999-2002

INFINITI

G20

T

1995-1998

Nissan

200SX

SE-R

1991-1993,1995-1998

Nissan

240SX

Base

1991-1992,1997-1998

Nissan

240SX

LE

1989-1998

Nissan

240SX

SE

1989-1990

Nissan

240SX

XE

1991-1993

Nissan

NX

SE

1991-1993

Nissan

NX

XE

1991-1994

Nissan

Sentra

SE-R

## Details

- **Price:** 500.65 CAD
- **Vendor:** Manley Performance
- **Type:** Valve Springs, Retainers

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 500.65 CAD | In stock |

## Images

- Photo - Primary

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/manley-nissan-sr20de-sr20det-valve-spring-and-retainer-kit-w-o-valve-locks)
> Updated: 2026-06-27