Performance Springs Isuzu 4JJ1 16V Single Valve Springs – PS 2003

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Performance Springs PS 2003 Single Valve Springs are designed specifically for the Isuzu 4JJ1 16V engine.
These performance valve springs are designed to provide improved valve train control for performance and modified 4JJ1 applications. The PS 2003 has a maximum specified valve lift of 0.400", with 55 lb of seated pressure and 150 lb of open pressure at 0.450" lift.
The springs install at 1.500" installed height and feature a 29 mm outside diameter, 21.6 mm inside diameter and 20.3 mm coil bind.
A complete Isuzu 4JJ1 16V engine requires 16 × PS 2003 valve springs.
Spring Specifications
- Brand: Performance Springs
- Supplier: Performance Valve Springs
- Part Number: PS 2003
- Engine Make: Isuzu
- Engine Model: 4JJ1
- Configuration: 16V
- Spring Type: Single Valve Spring
- Maximum Valve Lift: 0.400"
- Installed Height: 1.500"
- Seated Pressure: 55 lb
- Open Pressure: 150 lb @ 0.450" lift
- Outside Diameter: 29 mm
- Inside Diameter: 21.6 mm
- Coil Bind: 20.3 mm
- Quantity Required: 16 springs per engine
Application
- Isuzu 4JJ1 16V
- Isuzu 4JJ1 diesel
- Isuzu 4JJ1 performance applications
What's Included
- 16 × Performance Springs PS 2003 Single Valve Springs
The supplier specifies that an Isuzu 4JJ1 16V requires 16 × PS 2003 springs.
Installation Information
Always verify installed height, valve lift, spring pressure, coil bind clearance, retainer compatibility and all other dimensions against the specific engine and cylinder head configuration before installation.
Performance Valve Springs recommends that all dimensions, pressures, applications and specifications are checked and rechecked before, during and after installation.
| Product Name | Performance Springs Isuzu 4JJ1 16V Single Valve Springs – PS 2003 |
|---|---|
| Brands | Performance Springs |
| Engine | 4JJ1 |
| Make | Isuzu |
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