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 MANUALSCHEVROLET2002EXPRESS 1 TON VAN V8-8.1L VIN GREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER HEAD ASSEMBLYROCKER ARM ASSEMBLY
2002 Chevrolet Express 1 Ton Van V8-8.1L VIN G
Rocker Arm Assembly
2002 Chevrolet Express 1 Ton Van V8-8.1L VIN GSECTION Rocker Arm Assembly
Rocker Arm Ratio 1.70:1
Valve Lash Intake Net Lash
Valve Lash Exhaust Net Lash
Valve Rocker Arm Nut 25 Nm (19 ft. lbs.)
Valve Rocker Arm Stud 50 Nm (37 ft. lbs.)
Valve Lash Intake Net Lash
Valve Lash Exhaust Net Lash
Valve Rocker Arm Nut 25 Nm (19 ft. lbs.)
Valve Rocker Arm Stud 50 Nm (37 ft. lbs.)
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.