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 MANUALSCHEVROLET2001EXPRESS 1 TON VAN V8-5.7L VIN RREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINESYSTEM SPECIFICATIONSCYLINDER HEAD SPECIFICATIONS
2001 Chevrolet Express 1 Ton Van V8-5.7L VIN R
Cylinder Head Specifications
2001 Chevrolet Express 1 Ton Van V8-5.7L VIN RSECTION Cylinder Head Specifications
Install the cylinder head to the engine block. Guide the cylinder head carefully into place over the dowel pins and the cylinder head gasket.
Apply sealant GM P/N 12346004 or equivalent to the threads of the cylinder head bolts.
Notice: Refer to Fastener Notice in Service Precautions.
Install the cylinder head bolts.
- Tighten the bolts in sequence on the first pass to 30 Nm (22 ft. lbs.).
Use the J36660-A in order to tighten the cylinder head bolts in sequence on the final pass. Tighten
- Tighten the long bolts (1, 2, 5, 6, 9, 10, and 13) on the final pass in sequence to 75°.
- Tighten the medium bolts (14 and 17) on the final pass in sequence to 65°.
- Tighten the short bolts (3, 4, 7, 8, 11, 12, 15, and 16) on the final pass in sequence to 55°.
Apply sealant GM P/N 12346004 or equivalent to the threads of the cylinder head bolts.
Notice: Refer to Fastener Notice in Service Precautions.
Install the cylinder head bolts.
- Tighten the bolts in sequence on the first pass to 30 Nm (22 ft. lbs.).
Use the J36660-A in order to tighten the cylinder head bolts in sequence on the final pass. Tighten
- Tighten the long bolts (1, 2, 5, 6, 9, 10, and 13) on the final pass in sequence to 75°.
- Tighten the medium bolts (14 and 17) on the final pass in sequence to 65°.
- Tighten the short bolts (3, 4, 7, 8, 11, 12, 15, and 16) on the final pass in sequence to 55°.
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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.