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

Upper Intake Manifold and Components


Object Number: 481237  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)Thermostat
(12)PCV Valve
(13)PCV Valve Grommet
(14)Oil Fill Cap
(15)Rocker Arm Cover Bolt
(16)Rocker Arm Cover
(17)Exhaust Crossover Nut
(18)Exhaust Crossover Pipe
(19)Exhaust Crossover Upper Heat Shield
(20)Upper Intake Manifold Gasket
(21)Upper Intake Manifold Gasket
(22)Electronic Ignition System Nut
(23)Electronic Ignition System
(24)Electronic Ignition System Bolt
(25)Electronic Ignition System Bolt
(26)Spark Plug Support Bracket
(27)Camshaft Position Sensor Bracket
(28)Map Sensor Bracket
(29)Upper Intake Manifold
(30)Upper Intake Manifold Stud
Figure 2:

Lower Intake Manifold, Cylinder Head, and Components


Object Number: 481240  Size: MF
(1)Fuel Injector Wiring Harness
(2)Fuel Injector Rail Assembly
(3)Lower Intake Manifold Diagnal Bolt
(4)Lower Intake Manifold Vertical Bolt
(5)Engine Coolant Temperature Sensor
(6)Intake Manifold Coolant Pipe
(7)Push Rod
(8)Cylinder Head Bolt
(9)Valve Rocker Arm Bolt
(10)Valve Rocker Arm
(11)Cylinder Head Bolt
(12)Valve Spring Cap Key
(13)Valve Spring Cap
(14)Valve Spring
(15)Valve Stem Oil Seal/Valve Spring Seat
(16)Cylinder Head Bolt
(17)Cylinder Head
(18)Exhaust Crossover Stud
(19)Left Exhaust Manifold
(20)Left Exhaust Manifold Stud
(21)Left Exhaust Manifold Heat Shield Bolt
(22)Left Exhaust Manifold Heat Shield
(23)Left Exhaust Manifold Nut
(24)Left Exhaust Manifold Gasket
(25)Intake Valve
(26)Exhaust Valve
(27)Cylinder Head Gasket
(28)Lower Intake Manifold Gasket
(29)Left Spark Plug Wires
(30)Right Exhaust Manifold Lower Heat Shield
(31)Right Spark Plug Wires
(32)Right Exhaust Manifold Lower Heat Shield Bolt
(33)Right Exhaust Manifold Stud
(34)Right Exhaust Manifold Nut
(35)Right Exhaust Manifold Upper Heat Shield Bolt
(36)Right Exhaust Manifold
(37)Right Exhaust Manifold Upper Heat Shield
(38)Right Exhaust Manifold Gasket
(39)Lower Intake Manifold
(40)Fuel Injector Rail Assembly Bolt
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