Application
| Specification
|
Metric
| English
|
General
|
|
| V8
|
|
| 7.0L
| 427 CID
|
|
| LS7
|
|
| E
|
|
| 104.766-104.784 mm
| 4.125-4.125 in
|
|
| 101.6 mm
| 4.0 in
|
|
| 11.0:1
|
|
| 1-8-7-2-6-5-4-3
|
|
| 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
|
|
| 104.766-104.784 mm
| 4.125-4.125 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
|
|
| 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
| 0.008 mm
| 0.0003 in
|
- Camshaft Lobe Lift - Intake
| 8.4 mm
| 0.331 in
|
- Camshaft Lobe Lift - Exhaust
| 8.34 mm
| 0.328 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 Diameter - Pin End
| 23.511-23.519 mm
| 0.926-0.926 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
|
|
| 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
| 127.9 mm
| 5.035 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
| 7.57 liters
| 8.0 quarts
|
- Oil Capacity - without Filter
| 7.10 liters
| 7.5 quarts
|
- Oil Pressure - Minimum at 100°C (212°F)
| 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
|
Oil Pan
|
- Front Cover 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
|
- Oil Pump Alignment - at Oil Pan Surface
| 0.0-0.1 mm
| 0.0-0.004 in
|
- Crankshaft Rear Oil Seal Housing Alignment - at Oil Pan Surface
| 0.0-0.5 mm
| 0.0-0.02 in
|
Piston Rings
|
- Piston Ring End Gap - First Compression Ring - Measured in Cylinder Bore - Production
| 0.22-0.47 mm
| 0.0087-0.0185 in
|
- Piston Ring End Gap - First Compression Ring - Measured in Cylinder Bore - Service
| 0.22-0.47 mm
| 0.0087-0.0185 in
|
- Piston Ring End Gap - Second Compression Ring - Measured in Cylinder Bore - Production
| 0.40-0.66 mm
| 0.0157-0.0259 in
|
- Piston Ring End Gap - Second Compression Ring - Measured in Cylinder Bore - Service
| 0.40-0.66 mm
| 0.0157-0.0259 in
|
- Piston Ring End Gap - Oil Control Ring - Measured in Cylinder Bore - Production
| 0.25-0.76 mm
| 0.0098-0.0299 in
|
- Piston Ring End Gap - Oil Control Ring - Measured in Cylinder Bore - Service
| 0.25-0.76 mm
| 0.0098-0.0299 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
| 0.008-0.023 mm
| 0.0003-0.0009 in
|
- Pin - Piston Pin Clearance to Piston Pin Bore - Service
| 0.008-0.023 mm
| 0.0003-0.0009 in
|
- Pin - Piston Pin Diameter
| 23.497-23.503 mm
| 0.925-0.925 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
| 104.758-104.792 mm
| 4.124-4.126 in
|
- Piston - Piston to Bore Clearance
| -0.026 to +0.026 mm
| -0.001 to +0.001 in
|
Valve System
|
|
| 45 degrees
|
|
| 1.754-2.254 mm
| 0.069-0.089 in
|
|
| Net Lash - No Adjustment
|
|
| 15.11 mm
| 0.595 in
|
|
| 15.01 mm
| 0.590 in
|
|
| 45 degrees
|
|
| 0.05 mm
| 0.002 in
|
- Valve Seat - Width - Exhaust
| 1.7-2.0 mm
| 0.067-0.079 in
|
- Valve Seat - Width - Intake
| 1.25-1.55 mm
| 0.049-0.061 in
|
- Valves - Stem Diameter - Intake
| 7.958-7.9735 mm
| 0.313-0.314 in
|
- Valves - Stem Diameter - Exhaust
| 7.956-7.976 mm
| 0.313-0.314 in
|
- Valves - Stem-to-Guide Clearance - Production - Intake
| 0.028-0.063 mm
| 0.001-0.0024 in
|
- Valves - Stem-to-Guide Clearance - Service - Intake
| 0.093 mm
| 0.0037 in
|
- Valves - Stem-to-Guide Clearance - Production - Exhaust
| 0.025-0.066 mm
| 0.001-0.0026 in
|
- Valves - Stem-to-Guide Clearance - Service - Exhaust
| 0.093 mm
| 0.0037 in
|
- Rocker Arms - Rocker Arm Ratio
| 1.80:1
|
- Valve Springs - Free Length
| 58.8 mm
| 2.313 in
|
- Valve Springs - Installed Height
| 49.75 mm
| 1.959 in
|
- Valve Springs - Load - Closed
| 450 N at 49.75 mm
| 101 lb at 1.96 in
|
- Valve Springs - Load - Open
| 1380 N at 34.75 mm
| 310 lb at 1.37 in
|
