EJCP.PARTS

GM 5.7 LS1

When introduced in the 1997 Corvette the LS1 was rated at 345 hp (257 kW) at 5,600 rpm and 350 lbf·ft (470 N·m) at 4,400 rpm. After improvements to the intake and exhaust manifolds in 2001 the rating improved to 350 hp (260 kW) and 365 lbf·ft (495 N·m).[2] The LS1 was used in the Corvette from 97-04. It was also used in 98-02 GM F-Body (Camaro & Trans Am) cars with a rating of 305–325+ HP, which was rumored to be conservative. The extra horsepower was claimed to come from the intake ram-air effect available in the SS and WS6 models. In Australia, continuous modifications were made to the LS1 engine throughout its lifetime, reaching 382 bhp (285 kW) in the HSV's YII series, and a Callaway modified version named "C4B" was fitted to HSV GTS models producing 402 bhp (300 kW).[WIKI]

SIZES BLOCK MATERIAL HEAD MATERIAL CAM TYPE FUEL SYSTEM
5.7 ALUMINUM ALUMINUM SOHC MPFI

ITEMS

BRACKETS EXHAUST MANIFOLD INTAKE MANIFOLD OIL PAN PISTON
SENSORS TIMING COVER TIMING SET VALVE COVER VALVE INFORMATION

LISTING TEMPLATES LS1

SIZES COMPATABILITY ENGINE TEMP HEAD TEMP CRANK TEMP NOTES
5.7 OHV 97-98 CORVETTE 5.7A 5.7 ***** ***********
5.7 OHV 98 CAMARO FIREBIRD 5.7B 5.7 ***** ***********
5.7 OHV 99-00 CAMARO FIREBIRD 5.7C 5.7 ***** ***********
5.7 OHV 01-02 CAMARO FIREBIRD 5.7E 5.7 ***** ***********
5.7 OHV 01-03 CORVETTE 5.7F 5.7 ***** ***********
5.7 OHV 04 CORVETTE 5.7G 5.7 ***** ***********
5.7 OHV 04 GTO 5.7H 5.7 ***** ***********

GM 5.7 LS6

The LS6 is a higher-output version of GM's LS1 engine and retains the same capacity. The initial 2001 LS6 produced 385 bhp (287 kW) and 385 lbf·ft (522 N·m), but the engine was modified for 2002 through 2004 to produce 405 bhp (302 kW) and 400 lbf·ft (540 N·m) of torque. The LS6 was originally only used in the high-performance C5 Corvette Z06 model, with the Cadillac CTS V-Series getting the 400 bhp (300 kW) engine later. The V-Series used the LS6 for two years before being replaced by the LS2 in 2006. For 2006, the Z06 replaced the LS6 with the new LS7. The LS6 shares its basic block architecture with the GM LS1 engine, but other changes were made to the design such as windows cast into the block between cylinders, improved main web strength and bay to bay breathing, an intake manifold and MAF-sensor with higher flow, a camshaft with higher lift and more duration, a higher compression ratio of 10.5:1, sodium filled valves, and a revised oiling system better suited to high lateral acceleration.[3] LS6 intake manifolds were also used on all 2001+ LS1/6 engines. The casting number, located on the top rear edge of the block, is 12561168. Applications:[WIKI]

SIZES BLOCK MATERIAL HEAD MATERIAL CAM TYPE FUEL SYSTEM
5.7 ALUMINUM ALUMINUM SOHC MPFI

LISTING TEMPLATES LS6

SIZES COMPATABILITY ENGINE TEMP HEAD TEMP CRANK TEMP NOTES
5.7 OHV 01 CORVETTE 5.7 5.7A ***** ***********
5.7 OHV 02-03 CORVETTE 5.7 5.7A ***** ***********
5.7 OHV 04 CORVETTE
04-05 CTS-V
5.7 5.7A ***** ***********

VALVE INFORMATION

MAKE MODEL YEAR RANGE
BUICK LACROSSE 2008-2009
CADILLAC CTS 2006-2007
CADILLAC ESCALADE 2002-2009
CHEVROLET AVALANCHE 2007-2009
CHEVROLET AVALANCHE 1500 2006
CHEVROLET CAMARO 1998-2002
CHEVROLET COLORADO 2009
CHEVROLET CORVETTE 1997-2007
CHEVROLET EXPRESS 1500 2007
CHEVROLET EXPRESS 2500 2003-2013
CHEVROLET EXPRESS 3500 2003-2013
CHEVROLET IMPALA 2006-2009
CHEVROLET MONTE CARLO 2006-2007
CHEVROLET SILVERADO 1500 1999-2013
CHEVROLET SILVERADO 1500 CLASSIC 2007
CHEVROLET SILVERADO 2500 2001-2006
CHEVROLET SILVERADO 3500 2001-2006
CHEVROLET SILVERADO 3500 CLASSIC 2007
CHEVROLET SUBURBAN 1500 2006-2009
CHEVROLET SUBURBAN 2500 2001-2006
CHEVROLET TAHOE 2000-2011
CHEVROLET TRAILBLAZER 2006-2009
PONTIAC FIREBIRD 1998-2002
GMC CANYON 2009
GMC SAVANA 1500 2007
GMC SAVANNA 2500 2003-2013
GMC SAVANNA 3500 2003-2013
GMC SIERRA 1500 1999-2013
GMC SIERRA 1500 CLASSIC 2007
GMC SIERRA 2500 2001-2006
GMC SIERRA 3500 2001-2006
GMC SIERRA 3500 CLASSIC 2007
GMC YUKON 2000-2011
GMC ENVOY 2006-2009
HUMMER H2 2003-2007
HUMMER H3 2008-2009
HUMMER H3T 2009
PONTIAC GRAND PRIX 2005-2008
PONTIAC GTO 2004-2006
TYPE HEAD DIAMETER STEM DIAMETER O.A.L. GROOVES LOCATION
EXHAUST 39.4 7.97 124.8 1 *GM48AU
INTAKE 48 7.97 123.7 1 *GM48BU

VALVE INFORMATION

MAKE MODEL YEAR RANGE
BUICK LACROSSE 2008-2009
CADILLAC CTS 2006-2007
CADILLAC ESCALADE 2002-2009
CHEVROLET AVALANCHE 2007-2009
CHEVROLET AVALANCHE 1500 2006
CHEVROLET CAMARO 1998-2002
CHEVROLET COLORADO 2009
CHEVROLET CORVETTE 1997-2007
CHEVROLET EXPRESS 1500 2007
CHEVROLET EXPRESS 2500 2003-2013
CHEVROLET EXPRESS 3500 2003-2013
CHEVROLET IMPALA 2006-2009
CHEVROLET MONTE CARLO 2006-2007
CHEVROLET SILVERADO 1500 1999-2013
CHEVROLET SILVERADO 1500 CLASSIC 2007
CHEVROLET SILVERADO 2500 2001-2006
CHEVROLET SILVERADO 3500 2001-2006
CHEVROLET SILVERADO 3500 CLASSIC 2007
CHEVROLET SUBURBAN 1500 2006-2009
CHEVROLET SUBURBAN 2500 2001-2006
CHEVROLET TAHOE 2000-2011
CHEVROLET TRAILBLAZER 2006-2009
GMC CANYON 2009
GMC SAVANA 1500 2007
GMC SAVANA 2500 2003-2013
GMC SAVANA 3500 2003-2013
GMC SIERRA 1500 1999-2013
GMC SIERRA 1500 CLASSIC 2007
GMC SIERRA 2500 2001-2006
GMC SIERRA 3500 2001-2006
GMC SIERRA 3500 CLASSIC 2007
GMC YUKON 2000-2011
GMC YUKON XL 1500 2006-2009
GMC YUKON XL 2500 2001-2006
HUMMER H2 20003-2007
HUMMER H3 2008-2009
HUMMER H3T 2009
PONTIAC FIREBIRD 1998-2002
PONTIAC GRAND PRIX 2005-2008
PONTIAC GTO 2004-2006
TYPE HEAD DIAMETER STEM DIAMETER O.A.L. GROOVES LOCATION
EXHAUST 39.4 7.97 124.8 1 *GM57AU
INTAKE 50.8 7.97 123.7 1 *GM57AU

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