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HOMESERVICE MANUALSCHEVROLET2001SUBURBAN C1500REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 17 (ENGINE MECHANICAL - 4.3L - SERVICE, REPAIR AND DIAGNOSTICS)SPECIFICATIONSENGINE MECHANICAL SPECIFICATIONS
2001 Chevrolet Suburban C1500

Engine Mechanical Specifications

2001 Chevrolet Suburban C1500SECTION Engine Mechanical Specifications
WARNING: This page is about a different car, the 2001 GMC Sierra and 2001 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Engine Mechanical Specifications

Application Specification
Metric English
General Data
  • Engine Type
 V6
  • RPO Code
 L35
  • VIN Code
 W
  • Displacement
 4.3 L 262 CID
  • Bore
 101.60 mm 4.012 in
  • Stroke
 88.39 mm 3.480 in
  • Compression Ratio
 9.2:1
  • Firing Order
 		 1-6-5-4-3-2
  • Spark Plug Gap
 1.52 mm 0.060 in
  • Oil Pressure - Minimum - at Normal Operating Temperature
 42 kPa at 1,000 RPM
125 kPa at 2,000 RPM
166 kPa at 4,000 RPM		 6 psig at 1,000 RPM
18 psig at 2,000 RPM
24 psig at 4,000 RPM
Balance Shaft
  • Rear Bearing Journal Clearance
 0.050-0.088 mm 0.0020-0.0035 in
  • Rear Bearing Journal Diameter
 38.085-38.100 mm 1.4994-1.500 in
Camshaft
  • End Play
 0.0254-0.2286 mm 0.0010-0.0090 in
  • Journal Diameter
 47.440-47.490 mm 1.8677-1.8696 in
  • Journal Diameter Out-of-Round
 0.025 mm - Maximum 0.0010 in - Maximum
  • 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 0.0026 in
Connecting Rod
  • Connecting Rod Bearing Clearance - Production
 0.038-0.078 mm 0.0015-0.0031 in
  • Connecting Rod Bearing Clearance - Service
 0.025-0.063 mm 0.0010-0.0025 in
  • Connecting Rod Journal Diameter
 57.116-57.148 mm 2.2487-2.2497 in
  • Connecting Rod Journal Out-of-Round - Production
 0.007 mm - Maximum 0.0002 in - Maximum
  • Connecting Rod Journal Out-of-Round - Service
 0.025 mm - Maximum 0.0010 in - Maximum
  • Connecting Rod Journal Taper - Production
 0.00508 mm - Maximum 0.00030 in - Maximum
  • Connecting Rod Journal Taper - Service
 0.025 mm - Maximum 0.0010 in - Maximum
  • Connecting Rod Side Clearance
 0.15-0.44 mm 0.006-0.017 in
Crankshaft
  • Crankshaft Bearing Clearance - Journal #1-Production
 0.02-0.508 mm 0.0008-0.0020 in
  • Crankshaft Bearing Clearance - Journal #2, #3, and #4-Production
 0.028-0.058 mm 0.0011-0.0023 in
  • Crankshaft Bearing Clearance - Journal #1-Service
 0.0254-0.05 mm 0.0010-0.0020 in
  • Crankshaft Bearing Clearance - Journal #2, #3, and #4-Service
 0.025-0.063 mm 0.0010-0.0250 in
  • Crankshaft End Play
 0.050-0.20 mm 0.002-0.008 in
  • Crankshaft Journal Diameter - Journal #1
 62.199-62.217 mm 2.4488-2.4495 in
  • Crankshaft Journal Diameter - Journal #2 and #3
 62.191-62.215 mm 2.4485-2.4494 in
  • Crankshaft Journal Diameter - Journal #4
 62.179-62.203 mm 2.4480-2.4489 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
 0.007 mm - Maximum 0.0003 in - Maximum
  • Crankshaft Runout
 0.025 mm - Maximum 0.0010 in - Maximum
Cylinder Bore
  • Diameter
 101.618-101.643 mm 4.0007-4.0017 in
  • Out-of-Round - Production
 0.0127 mm - Maximum 0.00050 in - Maximum
  • Out-of-Round - Service
 0.05 mm - Maximum 0.002 in - Maximum
  • Taper - Production Relief Side
 0.025 mm - Maximum 0.0010 in - Maximum
  • Taper - Production Thrust Side
 0.012 mm - Maximum 0.0005 in - Maximum
  • Taper - Service
 0.025 mm - Maximum 0.0010 in - Maximum
Cylinder Head
  • Surface Flatness
 0.10 mm - Maximum 0.004 in - Maximum
Exhaust Manifold
  • Surface Flatness - Flange to Flange
 0.25 mm - Maximum 0.010 in - Maximum
  • Surface Flatness - Individual Flange
 0.05 mm - Maximum 0.002 in - Maximum
Intake Manifold
  • Surface Flatness
 0.10 mm - Maximum 0.004 in - Maximum
Oil Pan
  • Oil Pan Alignment at Rear of Engine Block
 0.3 mm - Maximum 0.011 in - Maximum
Piston
  • Piston Bore Clearance - Production
 0.018-0.061 mm 0.0007-0.0024 in
  • Piston Bore Clearance - Service
 0.075 mm - Maximum 0.0029 in - Maximum
Piston Pin
  • Clearance in Piston - Production
 0.013-0.023 mm 0.0005-0.0009 in
  • Clearance in Piston - Service
 0.025 mm - Maximum 0.0010 in - Maximum
  • Diameter
 23.545-23.548 mm 0.9270-0.9271 in
  • Fit in Connecting Rod
 0.012-0.048 mm - Interference 0.0005-0.0019 in - Interference
Piston Rings - End Gap Measured in Cylinder Bore
  • Piston Compression Ring Gap - Production-Top Groove
 0.25-0.40 mm 0.010-0.016 in
  • Piston Compression Ring Gap - Production-2nd Groove
 0.38-0.58 mm 0.015-0.023 in
  • Piston Compression Ring Gap - Service-Top Groove
 0.25-0.50 mm 0.010-0.020 in
  • Piston Compression Ring Gap - Service-2nd Groove
 0.38-0.80 mm 0.015-0.031 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
 0.040-0.080 mm 0.0015-0.0031 in
  • Piston Compression Ring Groove Clearance - Service
 0.030-0.085 mm 0.0012-0.0033 in
  • Piston Oil Ring Gap - Production
 0.25-0.76 mm 0.010-0.029 in
  • Piston Oil Ring Gap - Service
 0.005-0.090 mm 0.0002-0.0035 in
  • Piston Oil Ring Groove Clearance - Production
 0.046-0.196 mm 0.0018-0.0077 in
  • Piston Oil Ring Groove Clearance - Service
 0.046-0.200 mm 0.0018-0.0079 in
Valve System
  • Valve Face Angle
 45 degrees
  • Valve Head Edge Margin
 0.79 mm - Minimum 0.031 in - Minimum
  • Valve Lash
 Net Lash-No Adjustment
  • Valve Lift - Exhaust
 10.879 mm 0.4280 in
  • Valve Lift - Intake
 10.527 mm 0.4140 in
  • Valve Lifter
 Hydraulic Roller Type
  • Valve Rocker Arm
 Roller Pivot Type
  • 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
 1.651-2.489 mm 0.065-0.098 in
  • Valve Seat Width - Intake
 1.016-1.651 mm 0.040-0.065 in
  • Valve Spring Free Length
 51.3 mm 2.02 in
  • Valve Spring Installed Height - Exhaust
 42.92-43.43 mm 1.670-1.700 in
  • Valve Spring Installed Height - Intake
 42.92-43.43 mm 1.670-1.700 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 - Exhaust-Service
 0.025-0.094 mm 0.0010-0.0037 in
  • Valve Stem Clearance - Intake-Production
 0.025-0.069 mm 0.0010-0.0027 in
  • Valve Stem Clearance - Intake-Service
 0.025-0.094 mm 0.0010-0.0037 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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  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
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