LEMON Manuals: Even more car manuals for everyone
Home >> Pontiac >> 2009 >> G8 Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Mechanical - 6.0L, 6.2L (1 Of 4)) >> Specifications >> Engine Mechanical Specifications (L76)

Engine Mechanical Specifications (L76)

WARNING: This page is about a different variant/trim than selected.
Application Specification
Metric English
  • Engine Type
 V8
  • Displacement
 5697 cu cm 348 cu in
  • RPO
 L76
  • Bore
 101.618-101.636 mm 4.0007-4.0017 in
  • Stroke
 92.0 mm 3.622 in
  • Compression Ratio
 9.67:1
  • 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 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 mm 53.338 mm 2.0991 in 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 mm 0.2 mm 0.0015 in 0.0078 in
  • Crankshaft Main Bearing Clearance - Production
 0.02 mm 0.052 mm 0.0008 in 0.0021 in
  • Crankshaft Main Bearing Clearance - Service
 0.02 mm 0.065 mm 0.0008 in 0.0025 in
  • Crankshaft Main Journal Diameter - Production
 64.992 mm 65.008 mm 2.558 in 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 mm 26.22 mm 1.029 in 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
 8.3 Litres 8.8 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
  • Active Fuel Management Relief Valve Oil Pressure - as Measured at Oil Pressure Sensor Location
 379-517 kPa
Maximum		 55-75 psi
Maximum
Oil Pan
  • Front Cover Alignment - at Oil Pan Surface
 0.0 mm 0.5 mm 0.0 in 0.02 in
  • Crankshaft Rear Oil Seal Housing Alignment - at Oil Pan Surface
 0.0 mm 0.5 mm 0.0 in 0.02 in
  • Oil Pan Alignment - to Rear of Engine Block at Transmission Bell Housing Mounting Surface
 0.0 mm 0.1 mm 0.0 in 0.004 in
Piston Rings
  • Piston Ring End Gap - First Compression Ring (Measured in Cylinder Bore - Production)
 0.20 mm 0.41 mm 0.008 in 0.016 in
  • Piston Ring End Gap - First Compression Ring (Measured in Cylinder Bore - Service)
 0.20 mm 0.41 mm 0.008 in 0.016 in
  • Piston Ring End Gap - Second Compression Ring (Measured in Cylinder Bore - Production)
 0.37 mm 0.69 mm 0.015 in 0.027 in
  • Piston Ring End Gap - Second Compression Ring (Measured in Cylinder Bore - Service)
 0.37 mm 0.69 mm 0.015 in 0.027 in
  • Piston Ring End Gap - Oil Control Ring (Measured in Cylinder Bore - Production)
 0.22 mm 0.79 mm 0.009 in 0.031 in
  • Piston Ring End Gap - Oil Control Ring (Measured in Cylinder Bore - Service)
 0.22 mm 0.79 mm 0.009 in 0.031 in
  • Piston Ring to Groove Clearance - First Compression Ring - Production
 0.030 mm 0.10 mm 0.0012 in 0.0040 in
  • Piston Ring to Groove Clearance - First Compression Ring - Service
 0.030 mm 0.10 mm 0.0012 in 0.0040 in
  • Piston Ring to Groove Clearance - Second Compression Ring - Production
 0.035 mm 0.078 mm 0.0014 in 0.0031 in
  • Piston Ring to Groove Clearance - Second Compression Ring - Service
 0.035 mm 0.078 mm 0.0014 in 0.0031 in
  • Piston Ring to Groove Clearance - Oil Control Ring - Production
 0.013 mm 0.201 mm 0.0005 in 0.0079 in
  • Piston Ring to Groove Clearance - Oil Control Ring - Service
 0.013 mm 0.201 mm 0.0005 in 0.0079 in
Pistons and Pins
  • Pin - Piston Pin Clearance to Piston Pin Bore - Production
 0.002 mm 0.01 mm 0.0008 in 0.0004 in
  • Pin - Piston Pin Clearance to Piston Pin Bore - Service
 0.002 mm 0.015 mm 0.0008 in 0.0006 in
  • Pin - Piston Pin Diameter
 23.952 mm 23.955 mm 0.943 in 0.943 in
  • Pin - Piston Pin Fit in Connecting Rod Bore - Production
 0.007 mm 0.02 mm 0.00027 in 0.00078 in
  • Pin - Piston Pin Fit in Connecting Rod Bore - Service
 0.007 mm 0.022 mm 0.00027 in 0.00086 in
  • Piston - Piston Diameter - Measured Over Skirt Coating
 101.611 mm 101.642 mm 4.0 in 4.001 in
  • Piston - Piston to Bore Clearance - Production
 -0.022 mm 0.08 mm -0.0009 in 0.0012 in
  • Piston - Piston to Bore Clearance (Service Limit with Skirt Coating Worn Off)
 0.024 mm 0.08 mm 0.00094 in 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
  • 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
scientia non olet · About LEMON Manuals