# Manley Spring Retainer, RET-TI 1.290 7 DEG +.050 LS1/LT4 EXH

Manley Valve Spring Retainers are engineered using finite element analysis and CNC machined to exacting tolerances to deliver unmatched strength and performance. These retainers reduce valvetrain mass, improve RPM potential, and ensure superior valve control in the most demanding racing applications.

-   CAD designed for ultimate reduction in mass without sacrificing strength
-   Special 6AL-4V titanium for maximum strength
-   Must use 7 valve locks

This Part Fits:

Year

Make

Model

Submodel

1987-1990

Chevrolet

Camaro

Iroc-Z

1991-1992,1998-2002

Chevrolet

Camaro

Z28

1988

Chevrolet

Corvette

35th Anniversary Edition

1985-1992,1997-2004

Chevrolet

Corvette

Base

1986

Chevrolet

Corvette

Indianapolis 500 Pace Car

1990-1992

Chevrolet

Corvette

ZR-1

1987-1988

Pontiac

Firebird

Base

1989-1992,1998-2002

Pontiac

Firebird

Formula

1987-1992

Pontiac

Firebird

Trans Am

1989-1992

Pontiac

Firebird

Trans Am GTA

2004

Pontiac

GTO

Base

## Details

- **Price:** 473.25 CAD
- **Vendor:** Manley Performance
- **Type:** Valve Springs, Retainers

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 473.25 CAD | In stock |

## Images

- Photo - Primary

---

> Source: [Standard Auto Part](https://www.standardautopart.com/products/manley-spring-retainer-ret-ti-1-290-7-deg-050-ls1-lt4-exh)
> Updated: 2026-06-27