GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Cylinder Head and Components


Object Number: 589348  Size: LF
(1)Engine Lift Rear Bracket
(2)Generator Brace Bracket
(3)Generator Brace Bolt
(4)Valve Lifter Guide
(5)Valve Rocker Arm Bolts
(6)Valve Rocker Arm
(7)Valve Rocker Arm Retainer
(8)Pushrod
(9)Valve Lifter
(10)Valve Stem Keys
(11)Valve Stem Cap
(12)Valve Stem Spring
(13)Valve Seal
(14)Spark Plug
(15)Cylinder Head
(16)Cylinder Head Gasket
(17)Intake Valve
(18)Exhaust Manifold Gasket (Left)
(19)Exhaust Manifold (Left)
(20)Exhaust Manifold Nut
(21)Exhaust Manifold Stud
(22)Exhaust Manifold Heat Shield
(23)Exhaust Manifold Heat Shield Nut
(24)Exhaust Manifold Heat Shield Nut
(25)EGR Valve Outlet Pipe
(26)EGR Valve Outlet Pipe Bolt
(27)EGR Valve Outlet Pipe Nut
(28)Heated Oxygen Sensor
(28)Heated Oxygen Sensor
(29)Engine Lift Front Bracket
(30)EGR Valve Adapter Studs
(31)EGR Valve Adapter Bolt
(32)EGR Valve Adapter
(33)EGR Valve Adapter Nuts
(34)Drive Belt Tensioner
(35)Drive Belt Tensioner Bolt
(36)EGR Valve Gasket
(37)EGR Valve
(38)EGR Valve Nuts
(39)Engine Block
(40)Exhaust Manifold Heat Shield
(41)Exhaust Manifold Heat Shield Nut
(42)Exhaust Manifold Nut
(43)Exhaust Manifold Stud
(44)Exhaust Manifold (Right)
(45)Exhaust Manifold Gasket (Right)
(46)Intake Manifold Seal
(47)Lower Intake Manifold Gasket
(48)Cylinder Head Gasket
(49)Cylinder Head
(50)Valve Rocker Arm Cover Gasket
(51)Valve Rocker Arm Cover
(52)Oil Fill Cap
(53)Oil Fill Cap Seal
(54)Oil Fill Tube
(55)Oil Fill Tube Seal
Figure 2:

Crankshaft and Components


Object Number: 42447  Size: LF
(1)Water Pump Pulley Bolt
(2)Water Pump Pulley
(3)Water Pump Bolt
(4)Water Pump
(5)Crankshaft Front Oil Seal
(6)Water Pump Gasket
(7)Engine Front Cover
(8)Engine Front Cover Gasket
(9)Oil Pump Gear Set
(10)Oil Pump Cover
(11)Oil Pump Cover Bolt
(12)Crankshaft Balancer Key
(13)Crankshaft Upper Bearing
(14)Engine Crankshaft
(15)Crankshaft Rear Oil Seal
(16)Engine Flywheel
(17)Flywheel Bolt
(18)Side Main Bearing Bolt
(19)Crankshaft Main Bearing Cap Bolt
(20)Crankshaft Lower Bearing
(21)Crankshaft Main Bearing Cap
(22)Oil Pan Drain Plug Gasket
(23)Oil Pan Drain Plug
(24)Engine Oil Pan
(25)Engine Oil Level Sensor
(26)Oil Pan Bolt
(27)Oil Pan Gasket
(28)Crankshaft Position Sensor Shield
(29)Crankshaft Balancer
(30)Crankshaft Balancer Washer
(31)Crankshaft Balancer Bolt
(32)Crankshaft Positions Sensor
(33)Camshaft Position Sensor
(34)Camshaft Position Sensor Bolt
Figure 3:

Intake Manifolds and Components


Object Number: 403765  Size: LF
(1)Vacuum Source Manifold
(2)Vacuum Source Manifold Gasket
(3)Fuel Injector Rail Nuts
(4)Fuel Injector Rail
(5)Upper Intake Manifold Bolt
(6)Thermostat Gasket
(7)Thermostat
(8)Water Outlet
(9)Water Outlet Bolts
(10)ICM Bracket
(11)ICM Bracket Bolt
(12)Upper Intake Manifold Gasket
(13)Lower Intake Manifold
(14)Coolant Temperature Sensor
(15)Lower Intake Manifold Bolt
(16)Throttle Body
(17)Throttle Body Gasket
(18)Upper Intake Manifold
(19)Upper Intake Manifold Bolt
Figure 4:

Piston and Components


Object Number: 42456  Size: LF
(1)Balance Shaft Gear Bolt
(2)Balance Shaft Gear
(3)Balance Shaft Gear Pin
(4)Balance Shaft Retainer Bolt
(5)Balance Shaft Retainer
(6)Balance Shaft
(7)Balance Shaft Rear Bushing
(8)Piston Pin Retainer Clip
(9)Piston Pin
(10)Piston Rings
(11)Piston
(12)Connecting Rod
(13)Connecting Rod Cap Bearings
(14)Connecting Rod Cap
(15)Connecting Rod Cap Bolt
(16)Crankshaft Rear Oil Seal Housing Bolt
(17)Crankshaft Rear Oil Seal Housing
(18)Crankshaft Rear Oil Seal Housing Gasket
(19)Cylinder Head Location Hole Pin
(20)Engine Block
(21)ESC Knock Sensor
(22)Oil Level Indicator
(23)Oil Level Indicator Tube Bolt
(24)Oil Level Indicator Tube
(25)Oil Pump Screen
(26)Oil Pump Screen Bolt
(27)Oil Pump Screen Gasket
(28)Engine Block Core Hole Plug
(29)Engine Front Cover Pin
(30)Engine Block Oil Gallery Plug
(31)Engine Front Cover Pin
(32)Oil Pressure Relief Valve Spring
(33)Oil Pressure Relief Valve
(34)Oil Filter Adapter Gasket
(35)Oil Filter Adapter
(36)Oil Filter Adapter Bolt
(37)Timing Chain Dampner
(38)Crankshaft Sprocket
(39)Camshaft Sprocket Bolt
(40)Timing Chain
(41)Camshaft Position Sensor Magnet
(42)Camshaft Sprocket
(43)Balance Shaft Drive Gear
(44)Camshaft Thrust Plate Bolt
(45)Camshaft Thrust Plate
(46)Camshaft Key
(47)Camshaft
(48)Camshaft Bearings