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

Upper Intake Manifold and Components


Object Number: 523293  Size: LF
(1)Upper Intake Manifold Bolt
(2)Thermostat Bypass Pipe
(3)Thermostat Bypass Pipe Nut
(4)Thermostat Bypass Pipe Bolt
(5)Thermostat Bypass Pipe Screw
(6)Thermostat Bypass Hose Clamp
(7)Thermostat Bypass Hose
(8)Thermostat Bypass Hose Clamp
(9)Coolant Outlet Bolt
(10)Coolant Outlet Assembly
(11)PCV Valve
(12)PCV Valve Grommet
(13)Rocker Arm Cover Bolt
(14)Rocker Arm Cover
(15)Oil Fill Cap
(16)Thermostat
(17)Exhaust Crossover Nut
(18)Exhaust Crossover Pipe
(19)Exhaust Crossover Upper Heat Shield
(20)EVAP Canister Purge Valve Bracket Stud
(21)EVAP Canister Purge Valve Bracket
(22)EVAP Canister Purge Valve
(23)Spark Pulug Wire Support
(24)Electronic Ignition System Nut
(25)Electronic Ignition System
(26)Electronic Ignition System Bolt
(27)Electronic Ignition System Bolt
(28)Upper Intake Manifold Gasket
(29)Upper Intake Manifold Gasket
(30)EGR Valve Pipe Assembly
(31)EGR Valve Pipe Gasket
(32)EGR Valve Assembly
(33)EGR Valve Gasket
(34)EGR Valve Assembly Bolt
(35)Upper Intake Manifold
(36)Spark Plug Support Bracket
(37)Spark Plug Support Bracket Bolt
(38)Wire Harness Bracket
(39)Upper Intake Manifold Bolt
(40)Map Sensor Bracket
(41)Radiator Surge Tank Bracket
Figure 2:

Lower Intake Manifold, Cylinder Head, and Components


Object Number: 54316  Size: LF
(1)Right Exhaust Manifold Upper Heat Shield Bolt
(2)Right Exhaust Manifold Upper Heat Shield
(3)Heated Oxygen Sensor
(4)Fuel Injector Wiring Harness
(5)Fuel Injector Rail Assembly Bolt
(6)Fuel Injector Rail Assembly
(7)Right Exhaust Manifold Gasket
(8)Lower Intake Manifold
(9)Lower Intake Manifold Diagonal Bolt
(10)Lower Intake Manifold Vertical Bolt
(11)Engine Coolant Temperature Sensor
(12)Valve Rocker Arm Bolt
(13)Valve Rocker Arm
(14)Push Rod
(15)Intake Manifold Coolant Pipe
(16)Cylinder Head Bolt
(17)Cylinder Head Bolt
(18)Valve Spring Cap Key
(19)Valve Spring Cap
(20)Valve Spring
(21)Valve Stem Oil Seal/Valve Spring Seat Assembly
(22)Cylinder Head Bolt
(23)Cylinder Head
(24)Left Exhaust Manifold Gasket
(25)Exhaust Crossover Stud
(26)Left Exhaust Manifold
(27)Left Exhaust Manifold Stud
(28)Left Exhaust Manifold Heat Shield Bolt
(29)Left Exhaust Manifold Heat Shield
(30)Left Exhaust Manifold Nut
(31)Intake Valve
(32)Exhaust Valve
(33)Cylinder Head Gasket
(34)Lower Intake Manifold Gasket
(35)Left Spark Plug Wires
(36)Right Spark Plug Wires
(37)Right Exhaust Manifold Lower Heat Shield
(38)Right Exhaust Manifold Lower Heat Shield Bolt
(39)Right Exhaust Manifold Stud
(40)Right Exhaust Manifold Nut
(41)Right Exhaust Manifold
Figure 3:

Engine Block and Components


Object Number: 54317  Size: LF
(1)Camshaft Sprocket Bolt
(2)Camshaft Sprocket
(3)Camshaft Thrust Plate Screw
(4)Camshaft Thrust Plate
(5)Camshaft Sprocket Alignment Pin
(6)Front Camshaft Bearing
(7)Intermediate Camshaft Bearing
(8)Intermediate Camshaft Bearing
(9)Rear Camshaft Bearing
(10)Camshaft
(11)Crankshaft Position Sensor Side-of-Block
(12)Crankshaft Position Sensor Side-of-Block Stud
(13)Valve Lifter Guide Bolt
(14)Valve Lifter Guide
(15)Valve Lifter
(16)Camshaft Position Sensor Bolt
(17)Camshaft Position Sensor
(18)Oil Pump Drive Assembly
(19)Oil Pump Drive Clamp
(20)Oil Pump Drive Clamp Bolt
(21)Upper Piston Compression Ring
(22)Lower Piston Compression Ring
(23)Oil Control Ring Assembly
(24)Piston Pin
(25)Piston
(26)Connecting Rod
(27)Connecting Rod Bolt
(28)Upper Connecting Rod Bearing Insert
(29)Lower Connecting Rod Bearing Insert
(30)Connecting Rod Bearing Cap
(31)Connecting Rod Bearing Cap Nut
(32)Oil Gallery 1/4 inch Plug
(33)Oil Gallery 1/8 inch Plug
(34)Camshaft Rear Cover
(35)Coolant Jacket Press-in Plug
(36)Transmission Dowel Pin
(37)Engine Block
(38)Coolant Jacket Press-in Plug
(39)Coolant Drain Plug
(40)Oil Filter
(41)Oil Filter Fitting
(42)Knock Sensor
(43)Timing Chain Dampener
(44)Timing Chain Dampener Bolt
(45)Engine Front Cover Alignment Pin
(46)Engine Front Cover Bolt
(47)Crankshaft Front Oil Seal
(48)Crankshaft Position Sensor
(49)Crankshaft Position Sensor Bolt
(50)Water Pump
(51)Water Pump Bolt
(52)Water Pump Pulley
(53)Water Pump Pulley Bolt
(54)Water Pump Gasket
(55)Engine Front Cover Bolt
(56)Engine Front Cover
(57)Engine Front Cover Gasket
(58)Oil Gallery 1/4 inch Plug
(59)Oil Gallery Press-in Plug
(60)Drive Belt Tensioner Bolt
(61)Drive Belt Tensioner
Figure 4:

Crankshaft and Components


Object Number: 54321  Size: LF
(1)Oil Level Indicator Assembly
(2)Oil Pan Gasket
(3)Starter Motor Shim
(4)Starter Motor
(5)Starter Motor Long Bolt
(6)Starter Motor Short Bolt
(7)Oil Pan Side Bolt
(8)Oil Pan Bolt
(9)Low Oil Level Indicator Bolt
(10)Low Oil Level Indicator
(11)Oil Pan
(12)Oil Pan Drain Plug Washer
(13)Oil Pan Drain Plug
(14)Oil Pump Bolt
(15)Oil Pump
(16)Oil Pump Drive Shaft
(17)Crankshaft Main Bearing Cap Stud
(18)Oil Pan Side Bolt
(19)Crankshaft Oil Deflector Nut
(20)Crankshaft Oil Deflector
(21)Oil Pump Alignment Pin
(22)Crankshaft Main Bearing Cap
(23)Crankshaft Lower Main Bearing Insert
(24)Crankshaft Rear Main Bearing Cap
(25)Crankshaft Main Bearing Cap Bolt
(26)Rear Crankshaft Oil Seal
(27)Crankshaft
(28)Timing Chain
(29)Crankshaft Sprocket
(30)Crankshaft Balancer
(31)Crankshaft Balancer Washer
(32)Crankshaft Balancer Bolt
(33)Crankshaft Balancer Key
(34)Crankshaft Upper Main Bearing Insert
(35)Engine Flywheel
(36)Engine Flywheel Retainer
(37)Engine Flywheel Bolt