GM Service Manual Online
For 1990-2009 cars only

Application

Specification

Metric

English

General

  • Engine Type

V8

  • Displacement

6.0L

364 CID

  • RPO

LS2

  • VIN

U

  • Bore

101.618-101.636 mm

4.0007-4.0017 in

  • Stroke

92.0 mm

3.622 in

  • Compression Ratio

10.9:1

  • Firing Order

1-8-7-2-6-5-4-3

  • Spark Plug Gap

1.02 mm

0.04 in

Block

  • Camshaft Bearing Bore 1 and 5 Diameter

59.58-59.63 mm

2.345-2.347 in

  • Camshaft Bearing Bore 2 and 4 Diameter

59.08-59.13 mm

2.325-2.327 in

  • Camshaft Bearing Bore 3 Diameter

58.58-58.63 mm

2.306-2.308 in

  • Crankshaft Main Bearing Bore Diameter

69.871-69.889 mm

2.75-2.751 in

  • Crankshaft Main Bearing Bore Out-of-Round

0.006 mm

0.0002 in

  • Cylinder Bore Diameter

101.618-101.636 mm

4.0007-4.0017 in

  • Cylinder Head Deck Height - Measuring from the Centerline of Crankshaft to the Deck Face

234.57-234.82 mm

9.235-9.245 in

  • Cylinder Head Deck Surface Flatness - Measured within a 152.4 mm (6.0 in) Area

0.11 mm

0.004 in

  • Cylinder Head Deck Surface Flatness - Measuring the Overall Length of the Block Deck

0.22 mm

0.008 in

  • Valve Lifter Bore Diameter

21.417-21.443 mm

0.843-0.844 in

Camshaft

  • Camshaft End Play

0.025-0.305 mm

0.001-0.012 in

  • Camshaft Journal Diameter

54.99-55.04 mm

2.164-2.166 in

  • Camshaft Bearing Diameter

55.063-55.088 mm

2.1678-2.1688 in

  • Camshaft Journal-to-Bearing Clearance

0.023-0.098 mm

0.0009-0.0038 in

  • Camshaft Journal Out-of-Round

0.025 mm

0.001 in

  • Camshaft Lobe Lift - Intake

7.78 mm

0.306 in

  • Camshaft Lobe Lift - Exhaust

7.77 mm

0.305 in

  • Camshaft Runout - Measured at the Intermediate Journals

0.05 mm

0.002 in

Connecting Rod

  • Connecting Rod Bearing Clearance - Production

0.023-0.065 mm

0.0009-0.0025 in

  • Connecting Rod Bearing Clearance - Service

0.023-0.076 mm

0.0009-0.003 in

  • Connecting Rod Bore Diameter - Bearing End

56.505-56.525 mm

2.224-2.225 in

  • Connecting Rod Bore Out-of-Round - Bearing End - Production

0.004-0.008 mm

0.00015-0.0003 in

  • Connecting Rod Bore Out-of-Round - Bearing End - Service

0.004-0.008 mm

0.00015-0.0003 in

  • Connecting Rod Side Clearance

0.11-0.51 mm

0.00433-0.02 in

Crankshaft

  • Connecting Rod Journal Diameter - Production

53.318-53.338 mm

2.0991-2.0999 in

  • Connecting Rod Journal Diameter - Service

53.308 mm

2.0987 in

  • Connecting Rod Journal Out-of-Round - Production

0.005 mm

0.0002 in

  • Connecting Rod Journal Out-of-Round - Service

0.01 mm

0.0004 in

  • Connecting Rod Journal Taper - Maximum for 1/2 of Journal Length - Production

0.005 mm

0.0002 in

  • Connecting Rod Journal Taper - Maximum for 1/2 of Journal Length - Service

0.02 mm

0.00078 in

  • Crankshaft End Play

0.04-0.2 mm

0.0015-0.0078 in

  • Crankshaft Main Bearing Clearance - Production

0.02-0.052 mm

0.0008-0.0021 in

  • Crankshaft Main Bearing Clearance - Service

0.02-0.065 mm

0.0008-0.0025 in

  • Crankshaft Main Journal Diameter - Production

64.992-65.008 mm

2.558-2.559 in

  • Crankshaft Main Journal Diameter - Service

64.992 mm

2.558 in

  • Crankshaft Main Journal Out-of-Round - Production

0.003 mm

0.000118 in

  • Crankshaft Main Journal Out-of-Round - Service

0.008 mm

0.0003 in

  • Crankshaft Main Journal Taper - Production

0.01 mm

0.0004 in

  • Crankshaft Main Journal Taper - Service

0.02 mm

0.00078 in

  • Crankshaft Rear Flange Runout

0.05 mm

0.002 in

  • Crankshaft Reluctor Ring Runout - Measured 1.0 mm (0.04 in) Below Tooth Diameter

0.7 mm

0.028 in

  • Crankshaft Thrust Surface - Production

26.14-26.22 mm

1.029-1.0315 in

  • Crankshaft Thrust Surface - Service

26.22 mm

1.0315 in

  • Crankshaft Thrust Surface Runout

0.025 mm

0.001 in

Cylinder Head

  • Cylinder Head Height/Thickness - Measured from the Cylinder Head Deck to the Valve Rocker Arm Cover Seal Surface

120.2 mm

4.732 in

  • Surface Flatness - Block Deck - Measured within a 152.4 mm (6.0 in) Area

0.08 mm

0.003 in

  • Surface Flatness - Block Deck - Measuring the Overall Length of the Cylinder Head

0.1 mm

0.004 in

  • Surface Flatness - Exhaust Manifold Deck

0.13 mm

0.005 in

  • Surface Flatness - Intake Manifold Deck

0.08 mm

0.0031 in

  • Valve Guide Installed Height - Measured from the Spring Seat Surface to the Top of the Guide

17.32 mm

0.682 in

Intake Manifold

  • Surface Flatness - Measured at Gasket Sealing Surfaces and Measured Within a 200 mm (7.87 in) Area that Includes 2 Runner Port Openings

0.3 mm

0.118 in

Lubrication System

  • Oil Capacity - with Filter

6.2 liters

6.5 quarts

  • Oil Capacity - without Filter

5.7 liters

6.0 quarts

  • Oil Pressure - Minimum - Hot

41 kPa at 1,000 engine RPM

124 kPa at 2,000 engine RPM

165 kPa at 4,000 engine RPM

6 psig at 1,000 engine RPM

18 psig at 2,000 engine RPM

24 psig at 4,000 engine RPM

Relief Valve Oil Pressure - as Measured at Oil Pressure Sensor Location

379-517 kPa

Maximum

55-75 psig

Maximum

Oil Pan

  • Front Cover Alignment - at Oil Pan Surface

0.0-0.5 mm

0.0-0.02 in

  • Crankshaft Rear Oil Seal Housing Alignment - at Oil Pan Surface

0.0-0.5 mm

0.0-0.02 in

  • Oil Pan Alignment - to Rear of Engine Block at Transmission Bell Housing Mounting Surface

0.0-0.1 mm

0.0-0.004 in

Piston Rings

  • Piston Ring End Gap - First Compression Ring - Measured in Cylinder Bore - Production

0.20-0.41 mm

0.008-0.016 in

  • Piston Ring End Gap - First Compression Ring - Measured in Cylinder Bore - Service

0.20-0.41 mm

0.008-0.016 in

  • Piston Ring End Gap - Second Compression Ring - Measured in Cylinder Bore - Production

0.37-0.69 mm

0.015-0.027 in

  • Piston Ring End Gap - Second Compression Ring - Measured in Cylinder Bore - Service

0.37-0.69 mm

0.015-0.027 in

  • Piston Ring End Gap - Oil Control Ring - Measured in Cylinder Bore - Production

0.22-0.79 mm

0.009-0.031 in

  • Piston Ring End Gap - Oil Control Ring - Measured in Cylinder Bore - Service

0.22-0.79 mm

0.009-0.031 in

  • Piston Ring to Groove Clearance - First Compression Ring - Production

0.030-0.10 mm

0.0012-0.0040 in

  • Piston Ring to Groove Clearance - First Compression Ring - Service

0.030-0.10 mm

0.0012-0.0040 in

  • Piston Ring to Groove Clearance - Second Compression Ring - Production

0.035-0.078 mm

0.0014-0.0031 in

  • Piston Ring to Groove Clearance - Second Compression Ring - Service

0.035-0.078 mm

0.0014-0.0031 in

  • Piston Ring to Groove Clearance - Oil Control Ring - Production

0.013-0.201 mm

0.0005-0.0079 in

  • Piston Ring to Groove Clearance - Oil Control Ring - Service

0.013-0.201 mm

0.0005-0.0079 in

Pistons and Pins

  • Pin - Piston Pin Clearance to Piston Pin Bore - Production

0.002-0.01 mm

0.0008-0.0004 in

  • Pin - Piston Pin Clearance to Piston Pin Bore - Service

0.002-0.015 mm

0.0008-0.0006 in

  • Pin - Piston Pin Diameter

23.952-23.955 mm

0.943-0.943 in

  • Pin - Piston Pin Fit in Connecting Rod Bore - Production

0.007-0.02 mm

0.00027-0.00078 in

  • Pin - Piston Pin Fit in Connecting Rod Bore - Service

0.007-0.0022 mm

0.00027-0.00086 in

  • Piston - Piston Diameter - Measured Over Skirt Coating

101.611-101.642 mm

4.0-4.001 in

  • Piston - Piston to Bore Clearance - Production

-0.022-0.08 mm

-0.0009-0.0012 in

  • Piston - Piston to Bore Clearance - Service Limit with Skirt Coating Worn Off

0.024-0.08 mm

0.00094-0.0031 in

Valve System

  • Valves - Valve Face Angle

45 degrees

  • Valves - Valve Face Width

1.25 mm

0.05 in

  • Valves - Valve Lash

Net Lash - No Adjustment

  • Valves - Valve Lift - Intake

13.23 mm

0.52 in

  • Valves - Valve Lift - Exhaust

13.22 mm

0.52 in

  • Valves - Valve Seat Angle

46 degrees

  • Valves - Valve Seat Runout

0.05 mm

0.002 in

  • Valves - Valve Seat Width - Exhaust

1.78 mm

0.07 in

  • Valves - Seat Width - Intake

1.02 mm

0.04 in

  • Valves - Valve Stem Diameter - Production

7.955-7.976 mm

0.313-0.314 in

  • Valves - Valve Stem Diameter - Service

7.95 mm

0.313 in

  • Valves - Valve Stem-to-Guide Clearance - Production - Intake

0.025-0.066 mm

0.001-0.0026 in

  • Valves - Valve Stem-to-Guide Clearance - Service - Intake

0.093 mm

0.0037 in

  • Valves - Valve Stem-to-Guide Clearance - Production - Exhaust

0.025-0.066 mm

0.001-0.0026 in

  • Valves - Valve Stem-to-Guide Clearance - Service - Exhaust

0.093 mm

0.0037 in

  • Rocker Arms - Valve Rocker Arm Ratio

1.70:1

  • Valve Springs - Valve Spring Free Length

52.9 mm

2.08 in

  • Valve Springs - Valve Spring Installed Height

45.75 mm

1.8 in

  • Valve Springs - Valve Spring Load - Closed

340 N at 45.75 mm

76 lb at 1.8 in

  • Valve Springs - Valve Spring Load - Open

980 N at 33.55 mm

220 lb at 1.32 in