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 MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN PASSENGER EXTENDED, 5.0 MREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 911 (ENGINE MECHANICAL - 6.6L - UNIT REPAIR OVERHAUL)SPECIFICATIONSTHREAD REPAIR SPECIFICATIONSCYLINDER HEAD - EXHAUST PORT VIEW
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 M
Cylinder Head - Exhaust Port View
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 MSECTION Cylinder Head - Exhaust Port View
WARNING: This page is about a different car, the 2001 GMC Sierra, 2001 GMC Cab & Chassis Sierra, 2001 Chevrolet Silverado, and 2001 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Cylinder Head - Exhaust Port View
| Service Hole Location | Thread Size | Drill | Counterbore Tool | Stop Collar | Tap | Driver | Insert | Drill Depth (Max) | Tap Depth (Min) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | (in) | mm | (in) | ||||||||
| 1 | M 10 x 1.5 | 211 | 212 | N/A | 213 | 214 | 215 | 25 | 0.98 | 21 | 0.827 |
| 2 | M 10 x 1.25 | not serviced | 80 | 3.15 | 30 | 1.181 | |||||
| 3 | M 10 x 1.5 | 211 | 212 | N/A | 213 | 214 | 215 | 25 | 0.98 | 21 | 0.827 |
| 4 | M 10 x 1.25 | not serviced | 80 | 3.15 | 30 | 1.181 | |||||
| 5 | M 10 x 1.5 | 211 | 212 | N/A | 213 | 214 | 215 | 25 | 0.98 | 21 | 0.827 |
| 6 | M 10 x 1.25 | not serviced | 80 | 3.15 | 30 | 1.181 | |||||
| 7 | M 10 x 1.5 | 211 | 212 | N/A | 213 | 214 | 215 | 25 | 0.98 | 21 | 0.827 |
| 8 | M 10 x 1.25 | not serviced | 80 | 3.15 | 30 | 1.181 | |||||
| 9 | M 10 x 1.5 | 211 | 212 | N/A | 213 | 214 | 215 | 25 | 0.98 | 21 | 0.827 |
| 10 | M 10 x 1.5 | 211 | 212 | N/A | 213 | 214 | 215 | 25 | 0.98 | 21 | 0.827 |
| 11 | M 10 x 1.5 | 211 | 212 | N/A | 213 | 214 | 215 | 25 | 0.98 | 21 | 0.827 |
| 12 | M 10 x 1.5 | 211 | 212 | N/A | 213 | 214 | 215 | 25 | 0.98 | 21 | 0.827 |
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.