GM Service Manual Online
For 1990-2009 cars only

Application

Specification

Metric

English

General

  • Engine Type

V8

  • Displacement

6.0L

364 CID

  • RPO

LFA

  • VIN

5

  • Bore

101.618-101.636 mm

4.0007-4.0017 in

  • Stroke

92.0 mm

3.622 in

  • Compression Ratio

10.7:1

  • Firing Order

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

  • Active Fuel Management Cylinders

1-4-6-7

  • 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 - Exhaust - Non Active Fuel Management Cylinders

7.17 mm

0.282 in

  • Camshaft Lobe Lift - Exhaust - Active Fuel Management Cylinders

7.3 mm

0.287 in

  • Camshaft Lobe Lift - Intake - Non Active Fuel Management Cylinders

7.08 mm

0.279 in

  • Camshaft Lobe Lift - Intake - Active Fuel Management Cylinders

7.2 mm

0.283 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

5.68 liters

6.0 quarts

  • Oil Capacity - without Filter

5.20 liters

5.5 quarts

  • Oil Pressure - Minimum - Hot

250 kPa at 1,000 RPM

290 kPa at 2,000 RPM

310 kPa at 4,000 RPM

36 psig at 1,000 engine RPM

42 psig at 2,000 engine RPM

45 psig at 4,000 engine RPM

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

0.0079-0.0161 in

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

0.20-0.46 mm

0.0079-0.0181 in

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

0.37-0.69 mm

0.0146-0.0272 in

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

0.37-0.75 mm

0.0146-0.0295 in

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

0.22-0.79 mm

0.0086-0.0311 in

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

0.22-0.84 mm

0.0086-0.0331 in

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

0.04-0.083 mm

0.0016-0.0033 in

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

0.04-0.083 mm

0.0016-0.0033 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

0.00008-0.0004 in

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

0.002-0.015 mm

0.00008-0.0006 in

  • Pin - Piston Pin Diameter

23.952-23.955 mm

0.9430-0.9431 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

0.007-0.022 mm

0.00027-0.00086 in

  • Piston - Piston Diameter - Measured Over Skirt Coating

101.615-101.649 mm

4.0006-4.0019 in

  • Piston - Piston to Bore Clearance - Production

-0.031 to +0.021 mm

-0.0012 to +0.0008 in

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

0.071 mm

0.0028 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

  • Valve Lift - Exhaust - Non Active Fuel Management

12.19 mm

0.480 in

  • Valve Lift - Exhaust - Active Fuel Management

12.41 mm

0.489 in

  • Valve Lift - Intake - Non Active Fuel Management

12.04 mm

0.474 in

  • Valve Lift - Intake - Active Fuel Management

12.24 mm

0.488 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 - Valve 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 - 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

  • 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

  • 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