Page 345 of 383

6-76 Engine Specifications
Type5.7L V8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VIN Engine Code
LS1 G. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LS6 S. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displacement346 cubic inches (5665 cc) . . . . . . . . .
Fuel DeliverySequential Multi
-Port . . . . . . . . . . . . .
Fuel Injection (SFI)
Valve ArrangementOverhead Valve . . . . . . . . . . . . .
Piston Displacement5.7L . . . . . . . . . . . . . . . . . . . . . .
Bore3.90 inches (9.9 cm) . . . . . . . . . . . . . . . . . . . . . .
Stroke3.62 inches (9.2 cm) . . . . . . . . . . . . . . . . . . . .
Compression Ratio
LS1 10.0:1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LS6 10.5:1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horsepower
LS1 350@5600 rpm. . . . . . . . . . . . . . . . . . . . . . . . .
LS6 380@6000 rpm. . . . . . . . . . . . . . . . . . . . . . . . .
Torque
LS1 (Automatic Transmission) 360@4000 rpm. . . .
LS1 (Manual Transmission) 370@4400 rpm. . . . . .
LS6 380@4800 rpm. . . . . . . . . . . . . . . . . . . . . . . . .
Firing Order1
-8-7-2-6-5-4-3 . . . . . . . . . . . . . . . . . .
Thermostat Starts to Open187F (86C) . . . . . . . .
Normal Maintenance
Replacement Parts
Engine Air Cleaner/FilterA917C* . . . . . . . . . . . . . .
Battery75P
-7YR* . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Surge Tank CapGM Part No. 10296465 . . .
15 psi (105 kPa)
Engine Oil FilterPF44* . . . . . . . . . . . . . . . . . . . . . . .
PCV ValveCV948C* . . . . . . . . . . . . . . . . . . . . . . . . .
0.060 inch (1.524 mm)
Spark PlugPTJ16R15 (0.060 inch Gap) . . . . . . . . . .
Denso Type Number
Windshield Wiper Blade
Length 22 inches (55.9 cm). . . . . . . . . . . . . . . . . . . .
Type 9 mm x 3 mm Shepherd's Hook. . . . . . . . . . . .
* ACDelco
part number.
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6-77 Vehicle Dimensions
Wheelbase104.5 inches (265.5 cm) . . . . . . . . . . . . . .
Front Tread
Coupe/convertible 61.9 inches (157.2 cm). . . . . . . .
Z06 62.4 inches (158.4 cm). . . . . . . . . . . . . . . . . . .
Rear Tread
Coupe/convertible 62.0 inches (157.4 cm). . . . . . . .
Z06 62.6 inches (158.9 cm). . . . . . . . . . . . . . . . . . .
Length179.7 inches (456.4 cm) . . . . . . . . . . . . . . . . .
Width73.6 inches (186.9 cm) . . . . . . . . . . . . . . . . . . .
Height
Coupe 47.7 inches (121.1 cm). . . . . . . . . . . . . . . . .
Convertible 47.8 inches (121.4 cm). . . . . . . . . . . . .
Z06 47.7 inches (121.2 cm). . . . . . . . . . . . . . . . . . .
Engine Accessory Drive Belt Routing
Page 347 of 383
7-
7-1
Section 7 Maintenance Schedule
This section covers the maintenance required for your vehicle. Your vehicle needs these services to retain its safety,
dependability and emission control performance.
7
-2 Introduction
7
-4 Part A: Scheduled Maintenance Services
7
-13 Part B: Owner Checks and Services7
-17 Part C: Periodic Maintenance Inspections
7
-19 Part D: Recommended Fluids and Lubricants
7
-21 Part E: Maintenance Record
Page 348 of 383

7-2
Have you purchased the GM Protection Plan? The Plan
supplements your new vehicle warranties. See your
Warranty and Owner Assistance booklet or your dealer
for details.
Introduction
Your Vehicle and the Environment
Proper vehicle maintenance not only helps to keep your
vehicle in good working condition, but also helps the
environment. All recommended maintenance procedures
are important. Improper vehicle maintenance can even
affect the quality of the air we breathe. Improper fluid
levels or the wrong tire inflation can increase the level
of emissions from your vehicle. To help protect our
environment, and to keep your vehicle in good
condition, please maintain your vehicle properly.
Maintenance Requirements
Maintenance intervals, checks, inspections and
recommended fluids and lubricants as prescribed in this
manual are necessary to keep your vehicle in good
working condition. Any damage caused by failure to
follow recommended maintenance may not be covered
by warranty.
Page 349 of 383

7-3 How This Section is Organized
This maintenance schedule is divided into five parts:
ªPart A: Scheduled Maintenance Servicesº shows
what to have done and how often. Some of these
services can be complex, so unless you are technically
qualified and have the necessary equipment, you should
let your dealer's service department or another qualified
service center do these jobs.
CAUTION:
Performing maintenance work on a vehicle can
be dangerous. In trying to do some jobs, you can
be seriously injured. Do your own maintenance
work only if you have the required know
-how
and the proper tools and equipment for the job.
If you have any doubt, have a qualified
technician do the work.
If you want to get the service information, see ªService
and Owner Publicationsº in the Index.ªPart B: Owner Checks and Servicesº tells you
what should be checked and when. It also explains
what you can easily do to help keep your vehicle in
good condition.
ªPart C: Periodic Maintenance Inspectionsº explains
important inspections that your dealer's service
department or another qualified service center
should perform.
ªPart D: Recommended Fluids and Lubricantsº lists
some recommended products necessary to help keep
your vehicle properly maintained. These products, or
their equivalents, should be used whether you do the
work yourself or have it done.
ªPart E: Maintenance Recordº is a place for
you to record and keep track of the maintenance
performed on your vehicle. Keep your maintenance
receipts. They may be needed to qualify your vehicle
for warranty repairs.
Page 350 of 383

7-4
Part A: Scheduled
Maintenance Services
Using Your Maintenance Schedule
We at General Motors want to help you keep your
vehicle in good working condition. But we don't know
exactly how you'll drive it. You may drive very short
distances only a few times a week. Or you may drive
long distances all the time in very hot, dusty weather.
You may use your vehicle in making deliveries.
Or you may drive it to work, to do errands or in
many other ways.
Because of all the different ways people use their
vehicles, maintenance needs vary. You may need more
frequent checks and replacements. So please read the
following and note how you drive. If you have any
questions on how to keep your vehicle in good
condition, see your dealer.This part tells you the maintenance services you should
have done and when you should schedule them. If you
go to your dealer for your service needs, you'll know
that GM
-trained and supported service people will
perform the work using genuine GM parts.
The proper fluids and lubricants to use are listed in
Part D. Make sure whoever services your vehicle
uses these. All parts should be replaced and all
necessary repairs done before you or anyone else
drives the vehicle.
This schedule is for vehicles that:
carry passengers and cargo within recommended
limits. You will find these limits on your vehicle's
Tire
-Loading Information label. See ªLoading Your
Vehicleº in the Index.
are driven on reasonable road surfaces within legal
driving limits.
use the recommended fuel. See ªFuelº in the Index.
Page 351 of 383
Scheduled Maintenance
7-5
The services shown in this schedule up to 100,000 miles
(166 000 km) should be performed after 100,000 miles
(166 000 km) at the same intervals. The services shown
at 150,000 miles (240 000 km) should be performed at
the same interval after 150,000 miles (240 000 km).
See ªPart B: Owner Checks and Services,º
ªPart C: Periodic Maintenance Inspectionsº and
ªPart D: Recommended Fluids and Lubricantsº
following Part A.Footnotes
The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emissions warranty or limit recall liability prior to
the completion of the vehicle's useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the
maintenance be recorded.
Page 352 of 383
Scheduled Maintenance
7-6Engine Oil Scheduled Maintenance
Change engine oil and filter as indicated by the
Engine Oil Life System (or every 12 months,
whichever occurs first). Reset the system. The system
will show you when to change the oil
-- usually between
3,000 miles (5 000 km) and 15,000 miles (25 000 km)
since your last oil change. Under severe conditions, the
indicator may come on before 3,000 miles (5 000 km).
Never drive your vehicle more than 15,000 miles
(25 000 km) or 12 months without an oil and
filter change. Use engine oil meeting the
GM Standard GM4718M.The Engine Oil Life System won't detect dust in the oil.
So if you drive in a dusty area, be sure to change your
oil and filter every 3,000 miles (5 000 km) or sooner if
the CHANGE OIL SOON message appears. Remember
to reset the system when the oil and filter have been
changed. See ªEngine Oil Life Systemº in the Index for
more information on resetting the system.
An Emission Control Service.