The LS6 engine block
The all-aluminum LS6 V8 engine
block is refined to enable higher
piston speed and higher overall rpm
than the Corvette LS1 block on which
it is based. New hollow-stem intake
valves and liquid alloy exhaust valves
are lightweight and designed to
maintain solid contact with the rocker
arms during high-speed operation.
Displacement: 5.7 liters.
Low-restriction
intake manifold
A design shared with the LS1, this
manifold reduces air intake restriction
and improves airflow into the heads
for excellent breathing. New for
2002: a low-restriction air cleaner
with a larger intake.
Exclusive cylinder-
head design
At the heart and soul of the
LS6: cylinder heads designed
for excellent engine breathing.
Compression ratio is 10.5:1.
Unique exhaust
manifold design
Compared with the stamped-steel
exhaust manifolds used on the LS1,
the LS6 cast-iron exhaust manifolds
provide improved flow of exhaust
gases, increasing both engine perform-
ance and durability. For 2002, a freer
flowing exhaust system increases
the exhaust flow out of the engine,
further increasing engine power.
Z06-specific engine
beauty covers
Corvette owners are always being
asked,“What’s under the hood?”
With its red beauty covers, Z06
is as impressive with its hood
up as it is on the open road.
A higher lift camshaft
As air comes through the intake
manifolds in greater volume, it is
important for the air to enter the
combustion chamber as quickly as
possible to produce power. For 2002,
the LS6 camshaft has been redesigned
with higher lift lobes, resulting in a
5 percent increase in air flow through
the cylinder chamber.
Mass airflow sensor design
The mass airflow sensor has been
redesigned, enhancing air flow and
contributing to the horsepower increase.
The LS6.
Now with 405 horsepower.
More horsepower. As
if the LS6 wasn’t hot enough last year, the ’02 hp rating jumps by 20 — to 405. There has never
been a more powerful production Corvette V8. The LS6 is, more than anything else, robust.
Compared with the LS1 on which it is based, the LS6 aluminum block, cylinder heads, camshaft
and induction systems have all been revised for better breathing at high rpm. An enhanced
positive crankcase ventilation system improves oil control during racetrack and other high
lateral acceleration maneuvers. A unique titanium exhaust (mufflers and tailpipes) has less
mass and more strength than aluminum or magnesium. Faster revving. Deeper breathing.
Stronger internals. And now, a horsepower rating of 405 at 6000 rpm.
Positive crankcase
ventilation system
Because of the Z06’s increased
performance capabilities, changes
were made last year to improve oil
control during high-speed conditions
(compared with LS1 PCV system).
For more information, visit
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