Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1991CAPRICE WAGON RWD V8-350 5.7LREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER HEAD ASSEMBLYVALVE SPRINGVIN J, SPRING DIMENSIONS
1991 Chevrolet Caprice Wagon RWD V8-350 5.7L
VIN J, Spring Dimensions
1991 Chevrolet Caprice Wagon RWD V8-350 5.7LSECTION VIN J, Spring Dimensions
Vin J, Valve Spring Dimensions
| Inner Spring | Outer Spring | |
| Free Length | 1.54 Inch (in) | 1.71 Inch (in) |
| Installed Height | 1.18 Inch (in) | 1.34 Inch (in) |
| Seated Pressuure | 34.2-37.8 at 1.18 Pound Force At Inch (lbf @ in) | 64.1-76.4 at 1.34 Pound Force At Inch (lbf @ in) |
| Compression Pressure | 75.5-81.8 at 0.79 Pound Force At Inch (lbf @ in) | 145.8-166.4 at 0.95 Pound Force At Inch (lbf @ in) |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.