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1999 C-HEVROL£T CORVETTE
,
,
Technical features for the 5.7 VB engine are:
• The lSl features an ALUMINUM £NGIN£ SLOCK
that is both strong and lightweight The "deep-skirt"
design extends down past the bearing caps. Two
bolts tie the main bearing caps directly to the
engine block horilontaUy, and two more secure
each cap verticaUy. This design helps give the
engine outstanding durability, and reduces noise
and vibration.
• UGHTW£IGHT ALUMINUM CYLIND£R HUDS feature
replicated cylinder head ports to optimize airflow
in the engine, contributing to overaU performance.
• INTAK£ MANIFOLD enhances airflow to the engine
and is made of composite materials for enhanced
performance and reduced weight.
• DUAL-WALL eXHAUST MANIFOLD, made of high
strength stainless steel with an air gap between
the waUs, reduces cold-start emissions and helps
reduce noise levels.
• UGHTW£lGHT f'ISTONS AND HUVY -DUTY
CONN£CTlNG RODS anow engineers to tune the
engine performance for high rpm, achieving added
power from the 5.7 liter displacement
• VALV£TRAIN features in-line valves, rocker arms and
push rods for reduced stress and friction. This also
contributes to the overan fuel economy and durability.
• ROLL£R TIMING CHAIN, with nylon tensioners
enhances overall performance.
• COMPOSIT£ Ufl R£STRICTORS decrease mass and
help optimize fuel economy.
• DUAL ELECTRONIC Sf'ARK CONTROL sensor
is located in the vaUey of the engine block for
precise spark controL
• INT£GRAT£D AIR FU£L MODUL£ contributes to
overaU durability.
• MASS AIRFLOW seNSOR works with OBD II to
help reduce emissions.
• S£QU£NTIAL FU£L INJ£CTlON aids combustion
efficiency by optimizing fuel delivery.
• a£CTRIC THROnL£ CONTROL (£Te) aUows
precise tailoring of a specific throttle progression
to meet the needs of a Corvette. ETC integrates
electronic speed control brake torque management
and Traction ControL into a singLe controLLer, for
mass reduction and high durability. ETC is an integral
component of the Active Handling System
(if so equipped).
• DIR£CT-MOUNT ACC£SSORI£S eliminate some
bolts, fasteners and attachment points, which help
reduce engine noise and enhance durability.
• G£ROTOR OIL f'UMP provides low oil temperature
delivery and reliable performance due to low
parasitic loss.
• UG+fTW£JG+fT OIL f'AN features extended sumps
that contain additional oil to ensure a good supply
to the pickup tube for enhanced performance.
• 01'1£ IGNITION COIL f'£R CYLIND£R provides high
energy ignition for added combustion, reduced
emissions and enhanced durability.
• IO,OOO-MIL£ OIL CHANG£ INT£RVAL aUows for
longer perilds between oil changes and less
environmental waste.
• f'LATINUM-Tlf' Sf'ARK f'LUGS (first scheduled
spark plug maintenance at up to
100,000
miles: help
extend service intervals.
• £XT£ND£D-UF£ eNGINE COOLANT (first scheduled
replacement at up to
5
years or
150,000
miles')
helps make maintenance easy.
*Maintenance needs vary with different uses and driving conditions.
See owner's manual tor more information.
S£QUEHl11>.L
fUEL
INJ£CnON, standard on Corvette,
optimizes fuel economy and power output while
also helping the lSl VB to meet today's stringent
emissions control requirements.
• SFI's secret is its high precision fuel
contro~
which
uses one injector and nozzle per cylinder for
optimum cylinder-to-cylinder fuel distribution.
• Each injector is fired sequentially and timed to the
intake cycle for accuracy and metering control
(With non-SFI engines, fuel is injected once per
engine revolution through aU injectors at the same
time. Wrth SFI, timing is much more precise, improving
performance across the board.)
• Mass airflow meter constantly measures the
engine's air requirements. Changes in load, altitude
and temperature vary. In an SFI system, the mass
airflow meter is essential for accurate fuel deUvery.
• The injector nozzle's design and optimum location
produce an effective spray pattern that contributes
to the engine's smooth idle and fuel-efficiency.
f>J\.G£ 9
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