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 G3500, VAN PASSENGER EXTENDED, 6.5 FREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 10 (ENGINE MECHANICAL - 5.0L & 5.7L (UNIT REPAIR))SPECIFICATIONSENGINE MECHANICAL SPECIFICATIONS (5.0 L)
2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 F
Engine Mechanical Specifications (5.0 L)
2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 FSECTION Engine Mechanical Specifications (5.0 L)
WARNING: This page is about a different variant/trim than selected.
ENGINE MECHANICAL SPECIFICATIONS (5.0 L)
| Application | Specification | ||
|---|---|---|---|
| Metric | English | ||
| General Data | |||
| Engine Type | V8 | ||
| Displacement | 5.0 L | 305 CID | |
| RPO - VIN Code | L30 (M) | ||
| Bore | 94.89 mm | 3.737 in | |
| Stroke | 88.39 mm | 3.480 in | |
| Compression Ratio | 9.4:1 | ||
| Firing Order | 1-8-4-3-6-5-7-2 | ||
| Spark Plug Gap | 1.52 mm | 0.060 in | |
| 42 kPa at 1,000 RPM | 6 psig at 1,000 RPM | ||
| Oil Pressure - Minimum at Normal Operating Temperature | 125 kPa at 2,000 RPM | 18 psig at 2,000 RPM | |
| 166 kPa at 4,000 RPM | 24 psig at 4,000 RPM | ||
| Camshaft | |||
| End Play | 0.05-0.30 mm | 0.002-0.012 in | |
| Journal Diameter | 47.440-47.490 mm | 1.8677-1.8697 in | |
| Journal Diameter Out-of-Round | 0.025 mm | 0.0010 in | |
| Lobe Lift - Exhaust | 7.20-7.30 mm | 0.283-0.287 in | |
| Lobe Lift - Intake | 6.97-7.07 mm | 0.274-0.278 in | |
| Runout | 0.065 mm - Maximum | 0.0026 in - Maximum | |
| Connecting Rod | |||
| Connecting Rod Bearing Clearance - Production | 0.033-0.078 mm | 0.0013-0.0031 in | |
| Connecting Rod Bearing Clearance - Service | 0.025-0.063 mm | 0.0010-0.0025 in | |
| Connecting Rod Journal Diameter | 56.505-56.533 mm | 2.2246-2.2257 in | |
| Connecting Rod Journal Out-of-Round - Production | 0.007 mm - Maximum | 0.0003 in - Maximum | |
| Connecting Rod Journal Out-of-Round - Service | 0.025 mm - Maximum | 0.0010 in - Maximum | |
| Connecting Rod Journal Taper - Production | 0.007 mm - Maximum | 0.0003 in - Maximum | |
| Connecting Rod Journal Taper - Service | 0.025 mm - Maximum | 0.0010 in - Maximum | |
| Connecting Rod Side Clearance | 0.15-0.61 mm | 0.006-0.024 in | |
| Crankshaft | |||
| Crankshaft Bearing Clearance - Journal #1 - Production | 0.018-0.053 mm | 0.0007-0.0021 in | |
| Crankshaft Bearing Clearance - Journal #2, #3, and #4 - Production | 0.030-0.068 mm | 0.0012-0.0027 in | |
| Crankshaft Bearing Clearance - Journal #5 - Production | 0.020-0.060 mm | 0.0008-0.0024 in | |
| Crankshaft Bearing Clearance - Journal #1 - Service | 0.025-0.051 mm | 0.0010-0.0020 in | |
| Crankshaft Bearing Clearance - Journal #2, #3, and #4 - Service | 0.025-0.064 mm | 0.0010-0.0025 in | |
| Crankshaft Bearing Clearance - Journal #5 - Service | 0.038-0.063 mm | 0.0015-0.0025 in | |
| Crankshaft End Play | 0.05-0.20 mm | 0.002-0.008 in | |
| Crankshaft Journal Diameter - Journal #1 | 62.189-62.212 mm | 2.4484-2.4493 in | |
| Crankshaft Journal Diameter - Journal #2, #3, and #4 | 62.181-62.207 mm | 2.4481-2.4491 in | |
| Crankshaft Journal Diameter - Journal #5 | 62.185-62.207 mm | 2.4482-2.4491 in | |
| Crankshaft Journal Out-of-Round - Production | 0.005 mm - Maximum | 0.0002 in - Maximum | |
| Crankshaft Journal Out-of-Round - Service | 0.025 mm - Maximum | 0.0010 in - Maximum | |
| Crankshaft Journal Taper - Production | 0.005 mm - Maximum | 0.0002 in - Maximum | |
| Crankshaft Journal Taper - Service | 0.025 mm - Maximum | 0.0010 in - Maximum | |
| Crankshaft Runout at Rear Flange | 0.038 mm | 0.0015 in | |
| Cylinder Bore | |||
| Diameter | 94.894-94.947 mm | 3.7360-3.7381 in | |
| Out-of-Round - Production | 0.025 mm | 0.0010 in | |
| Out-of-Round - Service | 0.05 mm | 0.002 in | |
| Taper - Production - Relief Side | 0.025 mm | 0.0010 in | |
| Taper - Production - Thrust Side | 0.012 mm | 0.0005 in | |
| Taper - Service Limit | 0.025 mm | 0.0010 in | |
| Cylinder Head | |||
| Surface Flatness - Engine Block Deck | 0.10 mm | 0.004 in | |
| Surface Flatness - Exhaust Manifold Deck | 0.05 mm | 0.002 in | |
| Surface Flatness - Intake Manifold Deck | 0.10 mm | 0.004 in | |
| Exhaust Manifold | |||
| Surface Flatness - Flange to Flange | 0.25 mm | 0.010 in | |
| Surface Flatness - Individual Flange | 0.05 mm | 0.002 in | |
| Piston | |||
| Piston Bore Clearance - Production | 0.018-0.061 mm | 0.0007-0.0024 in | |
| Piston Bore Clearance - Service | 0.018-0.068 mm | 0.0007-0.0026 in | |
| Piston Pin | |||
| Clearance in Piston - Production | 0.010-0.020 mm | 0.0004-0.0008 in | |
| Clearance in Piston - Service | 0.013-0.025 mm | 0.0005-0.0010 in | |
| Diameter | 23.545-23.548 mm | 0.9270-0.9271 in | |
| Interference Fit in Connecting Rod | 0.012-0.050 mm | 0.0004-0.0019 in | |
| Piston Rings - End Gap Measured in Cylinder Bore | |||
| Piston Compression Ring Gap - Production - Top Groove | 0.25-0.51 mm | 0.010-0.020 in | |
| Piston Compression Ring Gap - Production - 2nd Groove | 0.46-0.66 mm | 0.018-0.026 in | |
| Piston Compression Ring Gap - Service - Top Groove | 0.25-0.65 mm | 0.010-0.025 in | |
| Piston Compression Ring Gap - Service - 2nd Groove | 0.46-0.90 mm | 0.018-0.035 in | |
| Piston Compression Ring Groove Clearance - Production - Top Groove | 0.030-0.070 mm | 0.0012-0.0027 in | |
| Piston Compression Ring Groove Clearance - Production - 2nd Groove | 0.030-0.074 mm | 0.0012-0.003 in | |
| Piston Compression Ring Groove Clearance - Service Limit - Top Groove | 0.030-0.090 mm | 0.0012-0.0035 in | |
| Piston Compression Ring Groove Clearance - Service Limit - 2nd Groove | 0.030-0.090 mm | 0.0012-0.0040 in | |
| Piston Oil Ring Gap - Production | 0.25-0.76 mm | 0.010-0.030 in | |
| Piston Oil Ring Gap - Service | 0.25-0.89 mm | 0.010-0.035 in | |
| Piston Oil Ring Groove Clearance - Production | 0.051-0.203 mm | 0.002-0.008 in | |
| Piston Oil Ring Groove Clearance - Service | 0.051-0.22 mm | 0.002-0.009 in | |
| Valve System | |||
| Valve Face Angle | 45 degrees | ||
| Valve Head Edge Margin | 0.79 mm - Minimum | 0.031 in - Minimum | |
| Valve Lash | Rotate the Valve Rocker Arm Nut Clockwise 360 degrees from Zero Lash | ||
| Valve Lifter | Hydraulic Roller | ||
| Valve Rocker Arm Ratio | 1.5:1 | ||
| Valve Seat Angle | 46 degrees | ||
| Valve Seat Runout | 0.05 mm - Maximum | 0.002 in - Maximum | |
| Valve Seat Width - Exhaust | 1.65-2.49 mm | 0.065-0.098 in | |
| Valve Seat Width - Intake | 1.14-1.78 mm | 0.045-0.070 in | |
| Valve Spring Free Length | 51.3 mm | 2.02 in | |
| Valve Spring Installed Height - Exhaust | 42.92-43.43 mm | 1.67-1.70 in | |
| Valve Spring Installed Height - Intake | 42.92-43.43 mm | 1.67-1.70 in | |
| Valve Spring Pressure - Closed | 338-374 N at 43.2 mm | 76-84 lb at 1.70 in | |
| Valve Spring Pressure - Open | 832-903 N at 32.3 mm | 187-203 lb at 1.27 in | |
| Valve Stem Clearance - Exhaust - Production | 0.025-0.069 mm | 0.0010-0.0027 in | |
| Valve Stem Clearance - Intake - Production | 0.025-0.069 mm | 0.0010-0.0027 in | |
| Valve Stem Clearance - Exhaust - Service | 0.025-0.094 mm | 0.0010-0.0037 in | |
| Valve Stem Clearance - Intake - Service | 0.025-0.094 mm | 0.0010-0.0037 in | |
| Valve Stem Diameter | 8.661-8.679 mm | 0.3410-0.3416 in | |
| Valve Stem Oil Seal Installed Height - Measured from the Top of the Large Diameter Valve Guide Bevel to the Bottom of the Valve Stem Oil Seal | 1-2 mm | 0.03937-0.07874 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.