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

Engine Block and Components


Object Number: 51320  Size: LF
(1)Balance Shaft Bushing
(2)Piston Pin Retainer Clip
(3)Piston Rings
(4)Piston
(5)Connecting Rod
(6)Connecting Rod Cap
(7)Connecting Rod Cap Bolt
(8)Connecting Rod Cap Bearing Kit
(9)Crankshaft Rear Main Oil Seal Housing Gasket
(10)Crankshaft Rear Main Oil Seal Housing
(11)Crankshaft Rear Main Oil Seal Housing Bolt
(12)Oil Level Indicator
(13)Oil Level Indicator Tube Bolt
(14)Oil Level Indicator Tube
(15)Cylinder Head Location Hole Pin
(16)Engine Cylinder Block
(17)ESC Knock Sensor
(18)Engine Block Core Hole Plug
(19)Oil Pump Screen Gasket
(20)Oil Pump Screen
(21)Oil Pump Screen Bolt
(22)Engine Front Cover Pin
(23)Cylinder Block Oil Gallery Plug
(25)Oil Pressure Relief Valve Spring
(26)Oil Pressure Relief Valve
(27)Oil Filter Adapter Gasket
(28)Oil Filter Adapter
(29)Timing Chain Damper
(30)Crankshaft Sprocket
(31)Timing Chain
(32)Camshaft Sprocket Bolt
(33)Camshaft Position Sensor Magnet
(34)Camshaft Sprocket
(35)Balance Shaft Drive Gear
(36)Camshaft Thrust Plate Bolt
(37)Camshaft Thrust Plate
(38)Camshaft
(39)Camshaft Key
(40)Balance Shaft Gear Bolt
(41)Balance Shaft Gear
(42)Balance Shaft Gear Pin
(43)Balance Shaft
(44)Balance Shaft Retainer Bolt
(45)Balance Shaft Retainer
(46)Camshaft Bearings
Figure 2:

Crankshaft and Components


Object Number: 51321  Size: LF
(1)Oil Pump Cover Bolt
(2)Engine Crankshaft
(3)Crankshaft Balancer Key
(4)Crankshaft Upper Bearing
(5)Flywheel Bolt
(6)Flywheel
(7)Crankshaft Rear Oil Seal
(8)Side Main Bolt
(9)Crankshaft Main Bearing Cap Bolt
(10)Oil Pan (Including Baffle) Gasket
(11)Engine Oil Pan
(12)Oil Level Sensor
(13)Oil Pan Bolt
(14)Oil Pan Drain Plug
(15)Oil Pan Drain Gasket
(16)Crankshaft Lower Bearing
(17)Crankshaft Main Bearing Cap
(18)Oil Pump Cover
(19)Oil Pump Gear Set
(20)Crankshaft Balancer Bolt
(21)Crankshaft Balancer
(22)Crankshaft Sensor Shield
(23)Crankshaft Position Sensor
(24)Engine Front Cover Oil Seal
(25)Camshaft Position Sensor
(26)Coolant Pump Bolt
(27)Camshaft Position Sensor Bolt
(28)Coolant Pump Pulley Bolt
(29)Coolant Pump Pulley
(30)Coolant Pump
(31)Coolant Pump Gasket
(32)Engine Front Cover
(33)Engine Front Cover Gasket
Figure 3:

Intake Manifolds and Components


Object Number: 51322  Size: LF
(1)Fuel Injection Rail
(2)Sight Shield Bracket
(3)Vacuum Source Manifold
(4)Fuel Injector Rail Nut
(5)Throttle Body
(6)Throttle Body Support
(7)Throttle Body Support Bolt
(8)Coolant Outlet Bolt
(9)Coolant Outlet
(10)Coolant Outlet Gasket
(11)Thermostat
(12)Lower Intake Manifold Gasket
(13)Lower Intake Manifold
(14)Coolant Temperature Sensor
(15)Engine Coolant Manifold Gasket
(16)Engine Coolant Manifold
(17)Engine Coolant Manifold Bolt
(18)Intake Manifold Seal
(19)Heater Bypass Inlet Pipe
(20)Lower Intake Manifold Bolt
(21)Exhaust (Right) Manifold
(22)Exhaust Manifold Heat Right-Lower Shield
(23)Exhaust Manifold heat Right-Upper Shield
(24)RH Engine Mounting Strut Bolt
(25)Heated Oxygen Sensor
(26)EGR Valve Adapter Bolt
(27)EGR Valve Outlet Pipe
(28)EGR Valve Outlet Pipe Bolt
(29)EGR Valve Outlet Pipe Nut
(30)EGR Valve Nut
(31)EGR Valve
(32)EGR Valve Gasket
(33)EGR Valve Adapter
(34)RH Engine Mounting Strut Bracket
(35)ICM
(36)Engine Lift Front Bracket
(37)Upper Intake Manifold Bolt
(38)Upper Intake Manifold
Figure 4:

Cylinder Head and Components


Object Number: 51329  Size: LF
(1)Valve Rocker Arm Bolt
(2)Valve Rocker Cover Gasket
(3)Valve Rocker Arm Cover
(4)Oil Fill Tube
(5)Oil Fill Cap
(6)Valve Rocker Arm Cover Bolt
(7)Engine Lift Rear Bracket
(8)LH Engine Mounting Strut Bracket
(9)LH Engine Mounting Strut Bracket Bolt
(10)Crossover
(11)Crossover Bolt
(12)Exhaust (Left) Manifold
(13)Exhaust Manifold Heat Shield
(14)Exhaust Manifold Heat Shield Nut
(15)Exhaust Manifold Bolt
(16)Valve Stem Key
(17)Valve Stem Cap
(18)Valve Stem Spring
(19)Valve Seal
(20)Spark Plug
(21)Intake Valve
(22)Cylinder Head Gasket
(23)Cylinder Head
(24)Generator Brace Bracket
(25)Generator Brace Bolt
(26)Drive Belt Tensioner
(27)Hydraulic Valve Lifter
(28)Valve Lifter Guide
(29)Pushrod
(30)Valve Rocker Arm Pivot Retainer
(31)Valve Rocker Arm