Vortec 4800 4.8 Liter V8
Vortec 5000 5.0 Liter V8
Vortec 5300 5.3 Liter V8
Vortec 5700 5.7 Liter V8
Vortec 6000 6.0 Liter V8
Vortec 8100 8.1 Liter V8

This all-aluminum 5.7 liter (5665cc) pushrod engine made the Generation III small-block V8 engines known throughout the automotive world!  An upgrade from the LT engine family, the LS1 utilizes advanced engineering design.  New features include a block cast from aluminum, coil-on-plug ignition, flat pistons, new intake and injection technology, and a square four-bolt cylinder head pattern.  In 2001, a higher flowing intake from the LS6 was installed in the LS1 with a smaller camshaft.  This design change allowed for continuous power levels and thus, the removal of the EGR system.  The detailed engine specifications and the vehicles where the LS1 was mounted can be seen below.

LS6

The LS6 is the high-output engine of the Generation III motors!  Similarly to the LS1, this 5.7 liter V8 includes innovative designs such as a block cast from aluminum, coil-on-plug ignition, flat pistons, new intake and injection technology, and a square four-bolt cylinder head pattern.  The upgrades to the LS6 are a titanium exhaust, higher-lift cams, improved intake, higher compression boost output, and a new oiling system.  These features allow for exceptionally high lateral acceleration!  The specifications of this high performance engine and the vehicles where the LS6 was mounted can be seen below.

LS2

An upgrade from the LS1, this 6.0L V8 engine takes power and performance to a new level.  A member of Generation IV, this big-bore engine is one of the largest small-blocks to be built.  The design behind the LS2 is similar to that of the LS6, but enhancements in power peak and torque display innovative design improvements!  The LS2 includes a block cast from aluminum, coil-on-plug ignition, flat pistons, new intake and injection technology, a square four-bolt cylinder head pattern, a titanium exhaust, higher-lift cams, improved intake, higher compression boost output, and an advanced oiling system.  The detailed engine specifications and the vehicles where the LS2 is mounted can be seen below.

LS4

This 5.3 liter (5326 cc) V8 engine is the smallest of the Generation IV block engines and still displays the power, performance and efficiency associated with the LS-series.  The LS4 includes a block cast from aluminum, coil-on-plug ignition, flat pistons, new intake and injection technology, and a square four-bolt cylinder head pattern.  For the first time ever, a version of this small-block engine offers transverse front wheel drive.  Another new feature for the LS4 is Displacement on Demand which allows cylinders in the V8 to shut off when the engine is not fully stressed.  DOD continues to deliver the same top-of-the-line performance with less effort and energy.  The detailed engine specifications and the vehicles where the LS2 is mounted can be seen below.

This 7.0 liter (7000 cc) V8 is the high-power engine of the LS-series.  This engine puts out an astounding 505 horsepower, the most power ever from a General Motors engine! Similarly to the LS2, the LS7 includes a block cast from aluminum, coil-on-plug ignition, flat pistons, new intake and injection technology, a square four-bolt cylinder head pattern, a titanium exhaust, higher-lift cams, improved intake, higher compression boost output, and an advanced oiling system.  The upgrades that make this engine a top-of-the-line performer are the increased bore, longer stroke, forged crankshaft, forged main bearing caps, titanium connecting rods, and cast pistons.  The detailed engine specifications and the vehicles where the LS2 is mounted can be seen below.

Vortec 4800

This 4.8 liter V8 truck engine is a de-bored and de-stroked cast-iron block version of the small-block LS1 from the Corvette!  The Vortec 4800, or LR4, has aluminum cylinder heads and a new, more powerful electronic throttle control computer.  The 4800 utilizes the same block and cylinder heads as the Vortec 5300.  The detailed engine specifications and the vehicles where the 4800 is mounted can be seen below. 

Vortec 5000

This 5.0 liter truck engine is a V8 with a cast-iron block.  Based on the Chevrolet Generation I small-block engines, the Vortec 5000, or L30, was installed in General Motor’s full-size van until 2003.  The detailed engine specifications and the vehicles where the 5000 is mounted can be seen below. 

Vortec 5300

This 5.3 liter V8 truck engine is based off the LS1 Corvette engine!  The LM7 uses a cast-iron block while the LM4 and L59 use an all-aluminum block.  The cylinder heads are cast-aluminum.  This engine delivers great power and performance.  In 2005, GM introduced the LH6 that includes the Displacement on Demand feature which allows cylinders in the V8 to shut off when the engine is not fully stressed.  DOD continues to deliver the same top-of-the-line performance with less effort and energy.  The detailed engine specifications and the vehicles where the 5300 is mounted can be seen below. 

LM7 (iron block, low-emissions) applications:

LM4 (all-aluminum) applications:

LH6 (Displacement on Demand) applications:

Vortec 5700

This 5.7 liter V8 engine is the last motor of the Chevrolet Generation I small-blocks.  The Vortec 5700, or L31, has a head compatible with all older small-blocks, making it a great upgrade.  This engine is an all-iron small-block. The detailed engine specifications and the vehicles where the 5700 is mounted can be seen below. 

Vortec 6000

This 6.0 liter V8 truck engine is a bored version of the Vortec 5300.  The Vortec 6000, or LQ4, has a cast-iron block and cast-aluminum cylinder heads.  In 2002, Cadillac introduced the LQ9 engine in the Escalade models.  The LQ9 is also known as the  Vortec HO 6000 or on the newer Chevy trucks as the VortecMAX.  The Vortec HO 6000, or LQ9, features high-compression flat-top pistons which add even more power and torque to this high-performance engine!  The detailed engine specifications and the vehicles where the 6000 is mounted can be seen below. 

Vortec 6000, LQ4, applications:

Vortec High Output 6000, LQ9

Vortec HO 6000, LQ9, applications:

 
This 8.1 liter V8 truck engine has an iron block and iron cylinder heads.  The Vortec 8100, or L18, was introduced in 2001 as an upgrade to the 7.4 liter big-blocks.  The detailed engine specifications and the vehicles where the 8100 is mounted can be seen below.

Duramax Diesel Engines

General Motors’ Finally came out with a Diesel contender when they introduced the Duramax line of Diesels in a joint venture with Isuzu. The Duramax first appeared in light duty GM trucks in late 2001 and replaced the 6.2 and 6.5 Detroit Diesel engines. The Duramax currently comes in four different configurations, the LG5, LG4, LLY, and the LBZ.  The LG5 is a 7.2 liter engine that appears in the LG5 medium duty commercial T-Series trucks.  The LG4 Duramax is a 7.8 liter turbocharged and intercooled diesel. The LG4 features a SOHC (single overhead cam) design and 24 valves.  It appears in the Chevy Topkick, GMC Kodiak, the Isuzu F-Series tiltcab trucks, and the Isuzu Erga busses.  And finally there are the light duty applications of the Duramax known as the LLY and the LBZ.  The LLY was the first application of the light duty Duramax for GM and made its debut in the ’01 model year for GMC and Chevy trucks.  Both the LLY and LBZ are 6.6 liter engines that feature DOHC design (dual overhead cam), 32 valves, and a turbocharger. The LLY appeared in the Chevy Kodiak, GMC Topkick, Chevy Silverado, GMC Sierra, and the Hummer H1 Alpha.    

LLY 6.0 Liter Duramax

LBZ 6.6 Liter Duramax

Duramax 6.6 LBZ Turbodiesel Applications

Still under construction, complete Duramax information coming soon!