| Component |
2001 LS1 |
2001 LS6 |
| Type |
Overhead valve, pushrod V-8 |
| Block |
Cast aluminum, 107.1 lbs (48.6
kg) |
| Block Deck Height |
9.24 in. (234.7 mm) |
|
Bore x
Stroke (in./mm) |
3.90 x 3.62 /99.0 x 92.0 |
| Cam Drive |
Chain |
| Camshaft |
Hollow steel |
| Combustion Chamber Volume |
4.1 cu. in. (67.3 cu. cm) |
| Connecting Rods |
PF1159M steel, sintered, forged
and shotpeened, 6.1-inches |
| Crankshaft |
Cast nodular iron with undercut
and rolled fillets |
| Cylinder Head |
Aluminum, 2 valves/cylinder, 20.3
lbs (9.2 kg) |
|
Displacement |
346 cu in, 5665 cc, 5.7 L |
| Exhaust Manifolds |
Cast nodular iron |
| Firing Order |
1-8-7-2-6-5-4-3 |
| Fuel Injection |
sequential electronic fuel
injection |
| Fuel Requirement |
Premium unleaded |
| Ignition |
Individual-coil, DIS
(distributorless ignition system) with double-platinum-tipped
spark plugs |
| Intake Manifold |
Composite, 15.9 lbs. (7.2 kg) |
| Lifters |
Hydraulic roller type |
| Main Bearing Caps |
Powdered metal |
| Rocker Arms |
Investment cast steel with a
roller fulcrum but a standard tip |
| Valve Lift (Intake/Exhaust)(in.) |
0.500/0.500 |
0.525/0.525 |
| Valve Lift Duration(Intake/Exhaust)(degrees) |
198/208 |
204/211 |
| Output |
|
Horsepower (hp @ rpm) |
350 @ 5,600 |
385 @ 6,000 |
|
Torque (lb-ft @ rpm) |
375 @ 4,400(manual)
360 @ 4,000(auto.) |
385 @ 4,800 |
| Redline (rpm) |
6,000 |
6,500 |
| Fuel Cutoff |
6,200 |
6,600 |
|
Compression Ratio |
10.1:1 |
10.5:1 |
| Manufacturing Origin |
St. Catherines, Ontario |
| Total Dressed Engine Weight |
Auto. - 457.6 lbs. (208 kg);
Manual - 497.2 lbs (226 kg) |
497.2 lbs (226 kg) |
|
|
| • |
Redesigned engine block
includes quarter size slots cast into the webs
underneath the travel area of the piston which
reduces the amount of air the pistons pump
resulting in higher rpm output. |
| |
| • |
Redesigned positive crankcase
ventilation system improves oil flow during high
speed conditions. |
| |
| • |
Redesigned air cleaner leading
to reduced restriction and greater air intake. |
| |
| • |
Redesigned camshaft profile
which allows increased valve lift, therefore
more air pulled into the combustion chamber
which helps to increase power. |
| |
| • |
New intake manifold and mass
air flow sensor design allows more air intake. |
| |
| • |
Higher rate valve springs and a
new cylinder head design enhance the engine's
breathing characteristics for increased rpm and
performance. |
| |
| • |
New cast iron exhaust manifolds
are used in place of the stamped steel manifolds
which improves the flow of exhaust gases. These
manifolds connect to a new lightweight, titanium
exhaust system which is the first ever to be
used in a mass-produced automobile. This new
exhaust system incorporates titanium exhaust
pipes and mufflers that contain larger louver
tubes which help to reduce back pressure and
increase performance. |
|
|
|
