Engine Mechanical Specifications

2019 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN GSECTION Engine Mechanical Specifications
WARNING: This page is about a different car, the 2018 GMC Savana 3500, 2018 GMC Savana 2500, 2018 Chevrolet Express 3500, and 2018 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
Application Specification
Metric English
General
  • Engine Type
Inline 4 Cylinder
  • Displacement
2.8 Liter 171 cu in
  • RPO
LWN
  • Bore
94 mm 3.7008 in
  • Stroke
100.05 mm 3.9390 in
  • Compression Ratio
16.5:1
  • Maximum compression pressure variation between 2 cylinders
500 KPa 72.5 psi
  • Idle Speed
760 RPM (ATX)
875 RPM (MTX)
  • Firing Order
1-3-4-2
Block
  • Cylinder Bore Internal Diameter
94 mm 3.700 in
  • Cylinder Bore Out-of-Round
0.007 mm 0.0003 in
  • Cylinder Head Deck Surface Flatness - Flatness/Span
0.02 mm/75 mm 0.03 mm/106 mm 0.1 mm/400 mm 0.0008 in/2.95 in 0.0012 in/4.17 in 0.0039 in/15.75 in
Camshaft
  • Camshaft End Play - Maximum
0.350 mm 0.013 in
  • Camshaft End Play - Minimum
0.150 mm 0.006 in
  • Camshaft Inner Journal Diameter - at Cylinder Head
26.000 - 26.015 mm 1.027 - 1.033 in
  • Camshaft Journal Clearance
0.03 - 0.075 mm 0.001 - 0.003 in
  • Camshaft Lobe Lift - Exhaust - Production
4.5 mm 0.177 in
  • Camshaft Lobe Lift - Intake - Production
4.5 mm 0.177 in
  • Camshaft Outer Journal Diameter - at Crankshaft
25.95 mm 1.021 in
Connecting Rod
  • Connecting Rod Diameter - Large End
57.563 mm 2.266 in
  • Connecting Rod Diameter - Small End
32 mm 1.26 in
Cooling System
  • Thermostat Opening Temperature
80Β°C 176Β°F
Crankshaft
  • Crankshaft End Play
0.10 - 0.33 mm 0.004 - 0.013 in
  • Crankshaft Journal Clearance - Maximum
0.075 mm 0.003 in
  • Crankshaft Journal Clearance - Minimum
0.030 mm 0.0012 in
  • Crankshaft Main Journal Diameter - Production
65 mm 2.559 in
Cylinder Head
  • Cylinder Head Height
135.5 mm 5.334 in
  • Surface Flatness - Deformation Tolerance - Flatness/Span
0.05 mm/15 mm 0.075 mm Total 0.0019 in/0.59 in 0.0030 in Total
Exhaust Manifold
  • Surface Flatness - Deformation Tolerance
0.075 mm 0.0030 in
Intake Manifold
  • Surface Flatness - Deformation Tolerance
0.075 mm 0.0030 in
Lubrication System
  • Oil Capacity - with Filter
6.0 qt 5.7 L
  • Oil Pressure - Minimum - Warm - at idle
70 KPa 10 psi
  • Oil Pressure - Minimum - 3800 RPM
250 KPa 36 psi
  • Oil Relief Valve Opening Pressure
500 KPa 72.5 psi
Oil Pump
  • Oil Pump Inner Rotor End Play - Maximum
0.01 mm 0.0004 in
  • Oil Pump Inner Rotor End Play - Minimum
0.09 mm 0.0036 in
  • Oil Pump Outer Rotor End Play - Maximum
0.09 mm 0.0036 in
  • Oil Pump Outer Rotor End Play - Minimum
0.01 mm 0.0004 in
  • Oil Pump Outer Rotor to Body Diameter Clearance - Maximum
0.130 mm 0.0051 in
  • Oil Pump Outer Rotor to Body Diameter Clearance - Minimum
0.230 mm 0.0091 in
Piston Rings
  • Piston Ring End Gap - First Compression Ring
0.25 - 0.65 mm 0.0098 - 0.0256 in
  • Piston Ring End Gap - Second Compression Ring
0.30 - 0.45 mm 0.0118 - 0.0177 in
  • Piston Ring End Gap - Oil Control Ring
0.25 - 0.50 mm 0.0098 - 0.0196 in
  • Piston Ring to Groove Clearance - First Compression Ring
0.080 - 0.13 mm 0.0031 - 0.0051 in
  • Piston Ring to Groove Clearance - Second Compression Ring
0.070 - 0.110 mm 0.0027 - 0.0043 in
  • Piston Ring to Groove Clearance - Oil Control Ring
0.040 - 0.080 mm 0.0015 - 0.0031 in
Pistons and Pins
  • Piston Diameter - Production (as measured 39 mm from bottom of piston)
93.793 - 93.807 mm 3.6926 - 3.6932 in
  • Piston Pin to Bore Clearance - Production
0.015 mm 0.0006 in
  • Piston Pin Diameter
32 mm 1.26 in
  • Piston Pin Length
70.7 - 71.0 mm 2.78 - 2.79 in
Valve System
  • Valve Face Angle
45 degrees 30'
  • Valve Head Diameter - Exhaust
29.4 mm 1.15 in
  • Valve Head Diameter - Intake
32.0 mm 1.25 in
  • Valve Lifters Diameter
11.994 mm 0.472 in
  • Valve Seat Angle
45 degrees
  • Valve Seat Runout
0.6 mm 0.024 in
  • Valve Seat Width - Exhaust
1.5 - 1.75 mm 0.059 - 0.069 in
  • Valve Seat Width - Intake
1.5 - 1.75 mm 0.059 - 0.069 in
  • Valve Spring Free Length
50.8 mm 2.00 in
  • Valve Spring Installed Height - Closed Valve
38 mm 1.49 in
  • Valve Spring Installed Height - Open Valve
29 mm 1.14 in
  • Valve Stem Diameter - Exhaust
5.96 mm 0.235 in
  • Valve Stem Diameter - Intake
5.97 mm 0.235 in
  • Valve Stem-to-Guide Clearance - Exhaust
0.040 - 0.070 mm 0.0016 - 0.0028 in
  • Valve Stem-to-Guide Clearance - Intake
0.030 - 0.060 mm 0.0012 - 0.0024 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:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.