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)SPECIFICATIONSENGINE MECHANICAL SPECIFICATIONS
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 M
Engine Mechanical Specifications
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 MSECTION Engine Mechanical Specifications
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.
Engine Mechanical Specifications
| Application | Specification | |
|---|---|---|
| Metric | English | |
| General | ||
|
90 degree V-8 | |
|
6.6 Liter | 402 cu in |
|
600 RPM | |
|
Gray Iron | |
|
17.5 | |
|
3158 KPa | 458 psi |
|
103 mm | 4.0551 in |
|
99 mm | 3.8976 in |
|
Aluminum | |
|
Aluminum | |
|
4 Valves | |
|
Yes | |
|
6 Bolts/Cylinder | |
|
Four Stroke | |
|
Compression | |
|
High Pressurized Direct Injection | |
|
160 MPa | |
|
Cast Aluminum | |
|
Cast Nodular Iron & Steel Pipe | |
|
Turbocharged, Charge Air Cooled | |
|
Three Point with Transmission | |
|
1-2-7-8-4-5-6-3 | |
|
Open PCV | |
|
None | |
|
Glow Plug | |
| Starter Motor | ||
|
Torque Reduction | |
|
Hitachi | |
|
3.5 KW | |
| Camshaft | ||
|
0.050-0.114 mm | 0.0020-0.0045 in |
|
0.2 mm | 0.0079 in |
|
1 | |
|
Steel Backed Pb-Sn-Cu Alloy | |
|
5 | |
|
Gears | |
|
Steel | |
|
60.92 mm | 2.3984 in |
|
60.932-60.962 mm | 2.3990-2.4001 in |
|
61.07 mm | 2.4043 in |
|
61.00-61.03 mm | 2.4016-2.4028 in |
|
5.907 mm | 0.2326 in |
|
7.273 mm | 0.2863 in |
|
0.05 mm | 0.0020 in |
| Roller Lifter and Push Rod | ||
|
0.9 mm | 0.0354 in |
|
0.989-1.0 mm | 0.0389-0.0394 in |
|
Less Than 0.8 mm | Less Than 0.0315 in |
| Connecting Rods | ||
|
Forged Steel Fracture Split | |
|
163.0 mm | 6.42 in |
|
Steel Backed Pb-Sn-Cu Alloy | |
|
Straight Split | |
|
Steel Backed Pb-Sn-In Overlay | |
|
0.10 mm | 0.0039 in |
|
0.036-0.077 mm | 0.0014-0.0030 in |
|
0.54 mm | 0.0213 in |
|
0.31-0.49 mm | 0.0122-0.0193 in |
|
62.958-62.979 mm | 2.4789-2.4795 in |
|
34.53 mm | 1.3594 in |
|
34.512-34.522 mm | 1.3587-1.3591 in |
|
0.08 mm | 0.0031 in |
|
0.012-0.027 mm | 0.0005-0.0011 in |
| Crankshaft | ||
|
Forged Steel | |
|
Nitrided | |
|
80.0 mm | 3.15 in |
|
63.0 mm | 2.48 in |
|
Rubber Damper | |
|
Cast Iron | |
|
Steel Backed Pb-Sn-Cu Overlay | |
|
5 | |
|
Crank Thrust Bearing | |
|
103.5 mm | 4.07 in |
|
13,006 mm2 | 20.16 in2 |
|
0.014 mm | 0.0055 in |
|
0.037-0.072 mm | 0.0015-0.0028 in |
|
0.54 mm | 0.0213 in |
|
0.04-0.205 mm | 0.0016-0.0081 in |
|
79.89 mm | 3.1453 in |
|
79.905-79.925 mm | 3.1459-3.1466 in |
|
0.44 mm | 0.0173 in |
|
0.05 mm | 0.0020 in |
|
62.88 mm | 2.4756 in |
|
62.902-62.922 mm | 2.4764-2.4772 in |
| Cylinder Bore | ||
|
103.11 mm | 4.0594 in |
|
102.997-103.023 mm | 4.0550-4.0560 in |
| Cylinder Head | ||
|
0.1 mm | 0.0039 in |
|
0.1 mm | 0.0039 in |
|
0.1 mm | 0.0039 in |
| Exhaust Manifold | ||
|
0.3 mm | 0.0118 in |
| Intake Manifold | ||
|
0.3 mm | 0.0118 in |
| Oil Pump | ||
|
0.22 mm | 0.0087 in |
|
0.125-0.221 mm | 0.0049-0.0087 in |
|
0.109 mm | 0.0043 in |
|
0.064-0.109 mm | 0.0025-0.0043 in |
|
0.14 mm | 0.0055 in |
|
19.86 mm | 0.7819 in |
|
19.947-19.960 mm | 0.7853-0.7858 in |
|
19.86 mm | 0.7819 in |
|
19.947-19.960 mm | 0.7853-0.7858 in |
| Pistons | ||
|
1 Piece | |
|
Aluminum | |
|
Antiscuff/Barrel Shaped | |
|
Ni-resist Insert for Top Ring Groove | |
|
Oil Cooling Channel | |
|
Hollow | |
|
Steel | |
|
34.5 mm | 1.36 in |
|
Snap Ring | |
|
3 | |
|
Keystone Ring | |
|
Steel | |
|
Positive Twist/Inner Cut | |
|
Cast Iron | |
|
Bevel-Edged Oil Control Ring | |
|
Steel | |
|
102.898-102.910 mm | 4.0510-4.0516 in |
|
0.090-0.120 mm | 0.0035-0.0047 in |
|
5 mm | 0.1969 in |
|
102.948-102.960 mm | 4.0531-4.0535 in |
|
34.504-34.512 mm | 1.3584-1.3587 in |
| Piston Pins | ||
|
0.017 mm | 0.0007 in |
|
0.004-0.017 mm | 0.0002-0.0007 in |
|
34.45 mm | 1.3563 in |
|
34.495-34.5 mm | 1.3581-1.3583 in |
| Piston Rings | ||
|
1.37 mm | 0.0539 in |
|
0.3-0.45 mm | 0.0118-0.0177 in |
|
1.35 mm | 0.0531 in |
|
0.50-0.65 mm | 0.0197-0.0256 in |
|
1.20 mm | 0.0472 in |
|
0.15-0.35 mm | 0.0059-0.0138 in |
| Piston Ring Groove Clearance | ||
|
0.26 mm | 0.0102 in |
|
0.08-0.17 mm | 0.0030-0.0067 in |
|
0.10 mm | 0.0039 in |
|
0.01-0.03 mm | 0.0004-0.0012 in |
|
0.12 mm | 0.0047 in |
|
0.01-0.03 mm | 0.0004-0.0012 in |
| Rocker Arms | ||
|
21.85 mm | 0.8602 in |
|
21.979-22.000 mm | 0.8653-0.8661 in |
|
22.010-22.035 mm | 0.8665-0.8675 in |
|
0.20 mm | 0.0079 in |
|
0.010-0.056 mm | 0.0004-0.0022 in |
| Valve Operating Mechanism | ||
|
Overhead Valve | |
|
Iron | |
|
Replaceable | |
|
Roller | |
|
1.36:1 (Inlet), 1.69:1 (Exhaust) | |
|
Conventional | |
|
Forged | |
|
Aluminum Die Casting | |
|
Steel | |
| Valves, Intake | ||
|
Double | |
|
Silicon Steel | |
|
2 | |
|
None | |
|
Sintered Steel | |
|
45 degrees from Vertical | |
|
33 mm | 1.30 in |
|
7 mm | 0.28 in |
|
9.55 mm | 0.376 in |
|
0.3 mm | 0.012 in |
| Valves, Exhaust | ||
|
Double | |
|
Silicon Steel | |
|
2 | |
|
None | |
|
45 degrees from Vertical | |
|
Sintered Steel | |
|
31 mm | 1.22 in |
|
7 mm | 0.28 in |
|
9.62 mm | 0.379 in |
| Valve System | ||
|
45 degrees | |
|
||
|
1.2 mm | 0.0472 in |
|
1.0 mm | 0.0394 in |
|
||
|
0.88 mm | 0.0346 in |
|
0.73 mm | 0.0287 in |
|
0.3 mm | 0.0118 in |
|
7.09 mm | 0.2791 in |
|
7.000-7.015 mm | 0.2755-0.2762 in |
|
7.16 mm | 0.2819 in |
|
7.000-7.015 mm | 0.2755-0.2762 in |
|
2 mm | 0.0787 in |
|
0.9 mm | 0.0354 in |
|
2.5 mm | 0.0984 in |
|
0.6 mm | 0.0236 in |
|
1.69:1 | |
|
1.36:1 | |
|
45 degrees | |
|
2.5 mm | 0.0984 in |
|
2.1 mm | 0.0827 in |
|
2.5 mm | 0.0984 in |
|
2.1 mm | 0.0827 in |
|
56.6 mm | 2.2283 in |
|
2.0 mm | 0.0787 in |
|
41 mm | 1.6142 in |
|
41 mm | 1.6142 in |
|
275 N at 41 mm | 61.8 lb at 1.61 in |
|
315-363 N at 41 mm | 71.0-81.6 lb at 1.61 in |
|
306 N at 41 mm | 68.8 lb at 1.61 in |
|
315-363 N at 41 mm | 71.0-81.6 lb at 1.61 in |
|
6.89 mm | 0.2713 in |
|
6.952-6.970 mm | 0.2737-0.2744 in |
|
6.91 mm | 0.2720 in |
|
6.942-6.962 mm | 0.2734-0.2741 in |
|
0.20 mm | 0.0079 in |
|
0.038-0.071 mm | 0.0015-0.0028 in |
|
0.20 mm | 0.0079 in |
|
0.030-0.063 mm | 0.0012-0.0025 in |
|
6.05 mm | 0.2382 in |
| Cooling | ||
|
Centrifugal | |
|
270 L/min @ 3172 RPM | |
|
Shaft Bearing | |
|
Wax Pellet | |
|
2 | |
|
Gear | |
|
||
|
82°C | 180°F |
|
85°C | 185°F |
|
110°C | 230°F |
|
60°C | 140°F |
| Lubrication | ||
|
Pressurized | |
|
Splash | |
|
Gear | |
|
48 kPa | 7 psi |
|
193 kPa | 28 psi |
|
9.5 L | 10 qt |
|
8.7 L | 9.2 qt |
|
Full-Flow Throwaway Type | |
|
Suction Bell, Front Sump | |
|
Axial Type | |
|
Water Cooled Corrugated Fin | |
|
441 kPa | 64 psi |
|
176-216 kPa | 26-31 psi |
| Air Intake System | ||
|
Yes | |
|
18 psi @ Peak Torque | |
|
Charge Air Cooled | |
|
Panel Element A1300 or A1306C for HD Usage | |
| Fuel System | ||
|
Gear Type, Integral | |
|
Bosch | |
|
Common Rail | |
|
Gear | |
|
Number Used = 1 | |
|
Full Flow, Paper Element | |
|
Right Hand Side of Engine | |
|
Electronic | |
|
Electronic Injector | |
|
Programmed | |
| Turbocharger | ||
|
0.11 mm | 0.0043 in |
|
Ishikawajima Harima Industries | |
|
RHG6 | |
|
0.20 mm | 0.0079 in |
RENDER: 1.0x
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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.