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

Engine Block and Components


Object Number: 49121  Size: LF
(1)Piston Pin Retainer Clip
(2)Piston Pin
(3)Piston Rings
(4)Piston
(5)Connecting Rod
(6)Connecting Rod Cap Bearing Kit
(7)Connecting Rod Cap
(8)Connecting Rod Cap Bolt/Screw
(9)Crankshaft Rear Main Oil Seal Housing Bolt/Screw
(10)Crankshaft Rear Main Oil Seal Housing
(11)Crankshaft Rear Main Oil Seal Housing Gasket
(12)Cylinder Head Location Hole Pin
(13)Engine Cylinder Block
(14)ESC Knock Sensor
(15)Oil Level Indicator
(16)Oil Level Indicator Bracket
(17)Oil Level Indicator Tube
(18)Oil Pump Screen
(19)Oil Pump Screen Gasket
(20)Oil Pump Screen Bolt/Screw
(21)Engine Block Core Hole Plug
(22)Engine Front Cover Pin
(23)Cylinder Block Oil Gallery Plug
(24)Oil Filter
(25)Engine Front Cover Pin
(26)Oil Pressure Relief Valve Spring
(27)Oil Pressure Relief Valve
(28)Oil Filter Adapter Gasket
(29)Oil Filter Adapter
(30)Timing Chain Damper
(31)Crankshaft Sprocket
(32)Camshaft Sprocket Bolt/Screw
(33)Timing Chain
(34)Camshaft Position Sensor Magnet
(35)Camshaft Sprocket
(36)Balance Shaft Drive Gear
(37)Camshaft Thrust Plate Bolt/Screw
(38)Camshaft Thrust Plate
(39)Camshaft Key
(40)Camshaft
(41)Balance Shaft Gear Bolt/Screw
(42)Balance Shaft Gear
(43)Balance Shaft Gear Pin
(44)Balance Shaft Retainer Bolt/Screw
(45)Balance Shaft Retainer
(46)Balance Shaft
(47)Balance Shaft Rear Bushing
(48)Camshaft Bearings
Figure 2:

Crankshaft and Components


Object Number: 49124  Size: MF
(1)Flywheel Bolt/Screw
(2)Flywheel
(3)Crankshaft Rear Oil Seal
(4)Oil Pan Gasket (Includes Baffle)
(5)Engine Oil Pan
(6)Oil Level Sensor
(7)Oil Pan Bolt/Screw
(8)Oil Pan Drain Plug
(9)Oil Pan Drain Gasket
(10)Crankshaft Sensor Shield
(11)Crankshaft Balancer
(12)Crankshaft Balancer Washer
(13)Crankshaft Balancer Bolt/Screw
(14)Coolant Pump Pulley Bolt/Screw
(15)Coolant Pump Pulley
(16)Coolant Pump
(17)Coolant Pump Gasket
(18)Engine Front Cover
(19)Engine Front Cover Gasket
(20)Oil Pump Cover Bolt/Screw
(21)Engine Crankshaft
(22)Crankshaft Balancer Key
(23)Crankshaft Upper Bearing
(24)Side Main Bolt/Screw
(25)Crankshaft Main Bearing Cap Bolt/Screw
(26)Crankshaft Lower Bearing
(27)Crankshaft Main Bearing Cap
(28)Oil Pump Cover
(29)Oil Pump Gear Set
(30)Crankshaft Position Sensor
(31)Engine Front Cover Oil Seal
(32)Camshaft Position Sensor
(33)Camshaft Position Sensor Bolt
(34)Coolant Pump Bolt/Screw
Figure 3:

Intake Manifold and Components


Object Number: 49125  Size: LF
(1)Fuel Injector Sight Shield Bracket
(2)Vacuum Source Manifold
(3)Accelerator Cable Control Bracket
(4)Throttle Body Support Bolt
(5)Throttle Body
(6)Water Outlet Bolt/Stud
(7)Water Outlet
(8)Engine Lift Rear Bracket
(9)Water Outlet Gasket
(10)Thermostat
(11)Intake Manifold Seal
(12)Lower Intake Manifold Gasket
(13)Lower Intake Manifold
(14)Coolant Temperature Sensor
(15)Engine Coolant Manifold Bolt
(16)Engine Coolant Manifold
(17)Engine Coolant Manifold Gasket
(18)Lower Intake Manifold Bolt
(19)Heater Water Inlet Pipe
(20)Exhaust Manifold Gasket
(21)Exhaust Manifold
(22)Exhaust Manifold Bolt
(23)Heated Oxygen Sensor
(24)EGR Valve Adapter Bolt
(25)EGR Valve Outlet Pipe
(26)EGR Valve Outlet Pipe Bolt
(27)EGR Valve Outlet Pipe Nut
(28)EGR Valve
(29)EGR Valve Nut
(30)EGR Valve Gasket
(31)EGR Valve Adapter
(32)Engine Lift Front Bracket
(33)ICM
(34)Fuel Injector Rail
(35)Fuel Injector Rail Nut
(36)Upper Intake Manifold Bolt
(37)Upper Intake Manifold
Figure 4:

Intake Manifold, Supercharger and Components (VIN 1)


Object Number: 49127  Size: LF
(1)Fuel Injection Rail
(2)Fuel Injector Sight Shield
(3)MAP Sensor Bracket Bolt/Screw
(4)MAP Sensor Bolt/Screw
(5)MAP Sensor
(6)MAP Sensor Bracket
(7)Bypass Valve
(8)Throttle Body
(9)Coolant Outlet Bolt/Screw
(10)Accelerator Cable Control Bracket
(11)Accelerator Cable Control Bracket Bolt/Screw
(12)Coolant Outlet
(13)Coolant Outlet Gasket
(14)Thermostat
(15)Supercharger Gasket
(16)Engine Coolant Manifold Bolt
(17)Engine Coolant Manifold
(18)Engine Coolant Manifold Gasket
(19)Coolant Temperature Sensor
(20)Lower Intake Manifold Gasket
(21)Intake Manifold Seal
(22)Heater Inlet Pipe With Seal
(23)Engine Lift Rear Bracket
(24)Exhaust Manifold (Right)
(25)Lower Intake Manifold
(26)Lower Intake Manifold Bolt
(27)Supercharger
(28)Supercharger Bolt/Screw
(29)Exhaust Oxygen Sensor
(30)Exhaust Manifold Bolt/Stud (Right)
(31)EGR Valve Adapter Bolt/Screw
(32)EGR Valve Outlet Pipe
(33)EGR Valve Outlet Pipe Bolt/Screw
(34)EGR Valve Outlet Pipe Nut
(35)EGR Valve Nut
(36)EGR Valve
(37)EGR Valve Gasket
(38)EGR Valve Adapter
(39)Engine Lift Front Bracket
(40)Fuel Injection Rail Nut
Figure 5:

Cylinder Head and Components


Object Number: 49129  Size: MF
(1)Oil Fill Cap
(2)Valve Rocker Arm Cover Bolt
(3)Exhaust Crossover Pipe
(4)Exhaust Crossover Bolt
(5)Exhaust Manifold (Left)
(6)Exhaust Manifold Bolt
(7)Exhaust Manifold Bolt
(8)Spark Plug
(9)Intake Valve
(10)Cylinder Head Gasket
(11)Cylinder Head
(12)Generator Brace
(13)Generator Brace Bolt
(14)Drive Belt Tensioner
(15)Valve Lifter (Roller)
(16)Valve Lifter Guide
(17)Pushrod
(18)Valve Rocker Arm Cover
(19)Valve Stem Key
(20)Valve Stem Cap
(21)Valve Stem Spring
(22)Valve Seal
(23)Valve Rocker Arm
(24)Valve Rocker Arm Bolt
(25)Valve Rocker Arm Retainer
(26)Exhaust Manifold Gasket
Figure 6:

Cylinder Head and Components (VIN 1)


Object Number: 49131  Size: LF
(1)Oil Fill Cap
(2)Valve Rocker Arm Cover Bolt/Screw
(3)ICM Nut
(4)ICM
(5)ICM Bolt/Screw
(6)Exhaust Crossover
(7)Crossover Bolt/Screw
(8)Valve Rocker Arm
(9)Valve Stem Key
(10)Valve Stem Cap
(11)Valve Stem Spring
(12)Valve Seal
(13)Exhaust Manifold (Left)
(14)Heat Shield (Left)
(15)Heat Shield Nut
(16)Exhaust Manifold Bolt/Stud (Left)
(17)Exhaust Manifold Bolt/Screw (Left)
(18)Spark Plug
(19)Intake Valve
(20)Cylinder Head Gasket
(21)Belt Idler Pulley Bracket Bolt
(22)Belt Idler Pulley
(23)Generator Brace Bolt/Screw
(24)Drive Belt Tensioner Bracket Bolt/Screw
(25)Drive Belt Tensioner Bracket Stud
(26)Hydraulic Valve Lifter (Roller)
(27)Drive Belt Tensioner Bracket
(28)Generator Brace
(29)Valve Rocker Arm Pivot Retainer
(30)Valve Rocker Arm Bolt/Screw
(31)Valve Rocker Arm Cover
(32)Valve Rocker Arm Cover Gasket
(33)Push Rod
(34)Valve Lifter Guide