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 MANUALSCHEVROLET1987S10/T10 BLAZER 4WD V6-173 2.8LREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER HEAD ASSEMBLYVALVE SPRING
1987 Chevrolet S10/T10 Blazer 4WD V6-173 2.8L
Valve Spring
1987 Chevrolet S10/T10 Blazer 4WD V6-173 2.8LSECTION Valve Spring
Valve Spring
Free Length 48.5 mm (1.91 in)
Pressure
Closed 391 Nm @ 40 mm (289 ft. lb. @ 1.57 in)
Open 867 Nm @ 30 mm (641 ft. lb. @ 1.181 in)
Installed height 40 mm (1.57 in)
Valve Spring Damper
Free Length 47.2 mm (1.86 in)
Approx. # of Coils 4
Free Length 48.5 mm (1.91 in)
Pressure
Closed 391 Nm @ 40 mm (289 ft. lb. @ 1.57 in)
Open 867 Nm @ 30 mm (641 ft. lb. @ 1.181 in)
Installed height 40 mm (1.57 in)
Valve Spring Damper
Free Length 47.2 mm (1.86 in)
Approx. # of Coils 4
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.