Content .. 1857 1858 1859 1860 ..
Chevrolet Silverado / GMC Sierra. Manual - part 1859
in) Area that Includes 2 Runner Port Openings
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
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 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
0.23-0.44 mm
0.009-0.017 in
Piston Ring End Gap - First Compression Ring
- Measured in Cylinder Bore - Service
0.23-0.5 mm
0.009-0.0196 in
Piston Ring End Gap - Second Compression
Ring - Measured in Cylinder Bore - Production
0.44-0.7 mm
0.017-0.027 in
Piston Ring End Gap - Second Compression
Ring - Measured in Cylinder Bore - Service
0.44-0.76 mm
0.0173-0.03 in
Piston Ring End Gap - Oil Control Ring -
Measured in Cylinder Bore - Production
0.18-0.75 mm
0.007-0.029 in
Piston Ring End Gap - Oil Control Ring -
Measured in Cylinder Bore - Service
0.18-0.81 mm
0.007-0.032 in
Piston Ring-to-Groove Clearance - First
0.04-0.085 mm
0.00157-0.00335
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
Compression Ring - Production
in
Piston Ring-to-Groove Clearance - First
Compression Ring - Service
0.04-0.085 mm
0.00157-0.00335
in
Piston Ring-to-Groove Clearance - Second
Compression Ring - Production
0.04-0.078 mm
0.00157-0.0031 in
Piston Ring-to-Groove Clearance - Second
Compression Ring - Service
0.04-0.078 mm
0.00157-0.0031 in
Piston Ring-to-Groove Clearance - Oil Control
Ring - Production
0.012-0.2 mm
0.0005-0.0078 in
Piston Ring-to-Groove Clearance - Oil Control
Ring - Service
0.012-0.2 mm
0.0005-0.0078 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
0.943-0.943 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
0.007-0.022 mm
0.00027-0.00086
in
Piston - Piston Diameter - Measured Over
Skirt Coating
96.002-96.036 mm
3.779-3.78 in
Piston - Piston to Bore Clearance - Production
-0.036 to +0.016
mm
-0.0014 to
+0.0006 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
12.24 mm
0.488 in
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
ENGINE MECHANICAL SPECIFICATIONS (RPO LY2 VIN C)
Valve Lift - Exhaust - Active Fuel
Management
12.46 mm
0.491 in
Valve Lift - Intake - Non Active Fuel
Management
12.24 mm
0.488 in
Valve Lift - Intake - Active Fuel Management
12.46 mm
0.491 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 - 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
Application
Specification
Metric
English
General
Bore
96.0-96.018 mm
3.779-3.78 in
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
Compression Ratio
9.08:1
Displacement
4.8L
293 CID
Engine Type
V8
Firing Order
1-8-7-2-6-5-4-3
RPO
LY2
Stroke
83.0 mm
3.27 in
VIN
C
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
96.0-96.018 mm
3.779-3.78 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
7.2 mm
0.283 in
Camshaft Lobe Lift - Intake
7.2 mm
0.283 in
Camshaft Runout - Measured at the
0.05 mm
0.002 in
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
Content .. 1857 1858 1859 1860 ..