EJCP.PARTS

GM 5.3 LM7

HAS 706 & 862 HEADS
USES REAR VALLEY CAM SENSOR
CAST IRON BLOCK
CENTER VALLEY KNOCK SENSORS
DISHED PISTON
NON COATED SKIRTS REPLACED WITH COATED AND FLOATING PIN IN 04-05 SPECIFY WHAT VERSION IT IS IN THAT DATE RANGE

SIZES BLOCK MATERIAL HEAD MATERIAL CAM TYPE FUEL SYSTEM
5.3 CAST IRON ALUMINUM OHV MPFI

ITEMS

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

LISTING TEMPLATES

SIZES COMPATABILITY NOTES
5.3 OHV 99 SILVERADO SIERRA EGR
CAN HAVE NOTCHED OR NON HEAD
CABLE THROTTLE
5.3 OHV 00 SILVERADO SIERRA SUBURBAN TAHOE YUKON EGR
CAN HAVE NOTCHED OR NON HEAD
CABLE THROTTLE
5.3 OHV 01 SIERRA SILVERADO SUBURBAN TAHOE YUKON EGR
CAN HAVE NOTCHED OR NON HEAD
CABLE THROTTLE
5.3 OHV 02 AVALANCHE ESCALADE SIERRA SILVERADO SUBURBAN YUKON 5.3D 5.3C *****
5.3 OHV 03-04 AVALANCHE ESCALADE SIERRA SILVERADO TAHOE YUKON SUBURBAN 5.3E 5.3C *****
5.3 OHV 03-04 EXPRESS SAVANA 5.3F 5.3C *****
5.3 OHV 05-07 EXPRESS SAVANA 5.3G 5.3C *****
5.3 OHV 05-06 AVALANCHE
05 ESCALADE
05-07 SILVERADO SIERRA TAHOE SUBURBAN YUKON
5.3H 5.3C *****

GM 5.3 L59

SAME AS THE LM7
FLEX FUEL VERSION
HAS 706 & 862 HEADS
USES REAR VALLEY CAM SENSOR
CAST IRON BLOCK
CENTER VALLEY KNOCK SENSORS
DISHED PISTON
NON COATED SKIRTS REPLACED WITH COATED AND FLOATING PIN IN 04-05 SPECIFY WHAT VERSION IT IS IN THAT DATE RANGE

SIZES BLOCK MATERIAL HEAD MATERIAL CAM TYPE FUEL SYSTEM
5.3 CAST IRON ALUMINUM OHV MPFI

LISTING TEMPLATES

SIZES COMPATABILITY ENGINE TEMP HEAD TEMP CRANK TEMP NOTES
5.3 OHV 02 AVALANCHE ESCALADE SIERRA SILVERADO SUBURBAN YUKON 5.3D 5.3C *****
5.3 OHV 03-04 AVALANCHE ESCALADE SIERRA SILVERADO TAHOE YUKON SUBURBAN 5.3E 5.3C *****
5.3 OHV 07 EXPRESS SAVANA 5.3G 5.3C *****
5.3 OHV 05-06 AVALANCHE
05 ESCALADE
05-07 SILVERADO SIERRA TAHOE SUBURBAN YUKON
5.3H 5.3C *****

GM 5.3 LM4

The Vortec 5300 LM4 (VIN code "P") is an aluminum block version of the LM7, and had a short production life. The LM4s made 290 hp (216 kW) and 325 lb·ft (441 N·m), It should not be confused with the L33 described below.[WIKI]

SIZES BLOCK MATERIAL HEAD MATERIAL CAM TYPE FUEL SYSTEM
5.3 ALUMINUM ALUMINUM OHV MPFI

LISTING TEMPLATES

SIZES COMPATABILITY ENGINE TEMP HEAD TEMP CRANK TEMP NOTES
5.3 OHV 03-04 ENVOY ASCENDER TRAILBLAZER SSR
04 RAINIER
5.3A 5.3A *****

GM 5.3 LH6

The Vortec 5300 LH6 (VIN code "M") with Active Fuel Management replaced the LM4 for 2005, and was the first of the Generation IV small block V8 truck engines to go into production. The LH6 produced 300 hp (220 kW) to 315 hp (235 kW) and 330 lb·ft (447 N·m) to 338 lb·ft (458 N·m). It is the aluminum block counterpart to the LY5.[WIKI]

SIZES BLOCK MATERIAL HEAD MATERIAL CAM TYPE FUEL SYSTEM
5.3 ALUMINUM ALUMINUM OHV MPFI

LISTING TEMPLATES

SIZES COMPATABILITY ENGINE TEMP HEAD TEMP CRANK TEMP NOTES
5.3 OHV 05 ENVOY ASCENDER TRAILBLAZER RAINIER 9-7X 5.3A 5.3A *****
5.3 OHV 06 ENVOY ASCENDER TRAILBLAZER RAINIER 9-7X 5.3B 5.3A *****
5.3 OHV 07-08 SIERRA SILVERADOENVOY ASCENDER 9-7X TRAILBLAZER 07 RAINIER 5.3C 5.3A *****
5.3 OHV 09 ENVOY 9-7X SILVERADO SERRA 5.3D 5.3A *****

GM 5.3 L33

The Vortec 5300 L33 (VIN code "B") is an aluminum block version of the LM7, and was referred to as the Vortec 5300 HO in marketing materials. However it should be noted that the L33 uses a flat top piston from the 4.8L instead of the standard dish piston found in the LM7. It also uses 799 cylinder heads, which are identical to the 243 casting found on the LS6 and LS2 with the exception to the Corvette spec valve springs, and hollow stem exhaust valves on the 2002-2004 LS6. This combination increased the compression from 9.5:1 to 10.0:1. The L33 also had a specific camshaft not shared with any other engine, with lobe lift of 7.2 mm, 193 degrees of intake and exhaust duration, and a 116 degree lobe separation angle. As a result, power increased by 15 hp (11 kW), to 310 hp (230 kW) and 335 lb·ft (441 N·m). It was only available on extended cab 4WD pickup trucks. Only 25% of trucks made in 2005 had the L33 engine.[WIKI]

SIZES BLOCK MATERIAL HEAD MATERIAL CAM TYPE FUEL SYSTEM
5.3 ALUMINUM ALUMINUM OHV MPFI

LISTING TEMPLATES

SIZES COMPATABILITY ENGINE TEMP HEAD TEMP CRANK TEMP NOTES
5.3 OHV 05-07 SIERRA SILVERADO 1500 5.3A 5.3A ***** CTF WLA YFB

GM 5.3 LY5

Introduced in 2007, the Vortec 5300 LY5 (VIN code "J") is the replacement for the LM7 Generation III engine. For SUV applications, it is rated at 320 hp (239 kW) and 340 lb·ft (461 N·m) of torque; for pickup truck applications, it is rated at 315–320 hp (235–239 kW) at 5200 rpm and 335–340 lb·ft (454–461 N·m) at 4000 rpm LY5 applications:[WIKI]

SIZES BLOCK MATERIAL HEAD MATERIAL CAM TYPE FUEL SYSTEM
5.3 CAST IRON ALUMINUM OHV MPFI

LISTING TEMPLATES

SIZES COMPATABILITY ENGINE TEMP HEAD TEMP CRANK TEMP NOTES
5.3 OHV 07-08 AVALANCHE SILVERADO SIERRA SUBURBAN TAHOE YUKON 5.3A 5.3A *****
5.3 OHV 09 AVALANCHE SILVERADO SIERRA SUBURBAN TAHOE YUKON 5.3B 5.3A *****

GM 5.3 LMG

The Vortec 5300 LMG (VIN code "0") is the flexible-fuel version of the LY5. Power and torque ratings for SUV and pickup truck applications are the same as each application's LY5 rating.[WIKI]

SIZES BLOCK MATERIAL HEAD MATERIAL CAM TYPE FUEL SYSTEM
5.3 CAST IRON ALUMINUM OHV MPFI

LISTING TEMPLATES

SIZES COMPATABILITY ENGINE TEMP HEAD TEMP CRANK TEMP NOTES
5.3 OHV 07-08 AVALANCHE SILVERADO SIERRA SUBURBAN TAHOE YUKON 5.3A 5.3A *****
5.3 OHV 09 AVALANCHE SILVERADO SIERRA SUBURBAN TAHOE YUKON 5.3B 5.3A *****
5.3 OHV 10-11 AVALANCHE
10-12 SIERRA TAHOE SUBURBAN YUKON TAHOE
5.3C 5.3A *****

GM 5.3 LC9

The Vortec 5300 LC9 (VIN code "3") is the aluminum block Flex-Fuel version of the LH6, and is found in 4WD models. SUV applications are rated at 320 hp (239 kW) @ 5400 rpm and 335 lb·ft (454 N·m) @ 4000 rpm of torque.[8] Pickup truck applications are rated at 315 hp (235 kW) @ 5300 rpm and 335 lb·ft (454 N·m) @ 4000 rpm of torque.[8] LC9 applications:[WIKI]

SIZES BLOCK MATERIAL HEAD MATERIAL CAM TYPE FUEL SYSTEM
5.3 ALUMINUM ALUMINUM OHV MPFI

LISTING TEMPLATES

SIZES COMPATABILITY ENGINE TEMP HEAD TEMP CRANK TEMP NOTES
5.3 OHV 07-08 AVALANCHE SILVERADO SIERRA SUBURBAN TAHOE YUKON 5.3A 5.3A *****
5.3 OHV 09 AVALANCHE SILVERADO SIERRA SUBURBAN TAHOE YUKON 5.3B 5.3A *****
5.3 OHV 11-12 AVALANCHE
10-12 SIERRA TAHOE SUBURBAN YUKON
10 TAHOE
5.3C 5.3A *****

GM 5.3 LH8

The Vortec 5300 LH8 is a variant of the 5.3 L Gen IV small block V8 modified to fit in the engine bay of the GMT 345 SUV and GMT 355 trucks. It produces 300 hp (220 kW) at 5200 rpm and 320 lb·ft (434 N·m) at 4000 rpm. It has a displacement of 5,328 cc (325.1 cu in).[9] LH8 applications:[WIKI]

SIZES BLOCK MATERIAL HEAD MATERIAL CAM TYPE FUEL SYSTEM
5.3 ALUMINUM ALUMINUM OHV MPFI

LISTING TEMPLATES

SIZES COMPATABILITY ENGINE TEMP HEAD TEMP CRANK TEMP NOTES
5.3 OHV 08-09 H3
09 COLORADO CANYON
5.3A 5.3A *****
5.3 OHV 10 H3
10-11 COLORADO CANYON
5.3B 5.3A *****

GM 5.3 LS4

The LS4 is a 5,328 cc (5.328 L; 325.1 cu in) version of the Generation IV block. Though it has the same displacement as the Vortec 5300 LY5, it features an aluminum block instead of iron, and it uses the same cylinder head as the Generation III LS6 engine. The bellhousing bolt pattern differs from the rear-wheel drive blocks. This engine is adapted for transverse front-wheel drive applications. According to GM, "The crankshaft is shortened 13 mm – 3 mm at the flywheel end and 10 mm at the accessory drive end – to reduce the length of the engine compared to the 6.0L. All accessories are driven by a single serpentine belt to save space. The water pump is mounted remotely with an elongated pump manifold that connects it to the coolant passages. Revised oil pan baffles, or windage trays, are incorporated into the LS4 to ensure that the oil sump stays loaded during high-g cornering."[10] Active Fuel Management is also used. Output of this version is 303 hp (226 kW)/300 hp on LaCrosse Super and 323 lb·ft (438 N·m).[WIKI]

SIZES BLOCK MATERIAL HEAD MATERIAL CAM TYPE FUEL SYSTEM
5.3 ALUMINUM ALUMINUM OHV MPFI

LISTING TEMPLATES

SIZES COMPATABILITY ENGINE TEMP HEAD TEMP CRANK TEMP NOTES
5.3 OHV 05-06 GRAND PRIX IMPALA MONTE CARLO 5.3A 5.3A *****
5.3 OHV 07-08 GRAND PRIX IMPALA
08-09 LACROSSE
5.3B 5.3A *****

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

GENERATION III 4.8 AND 5.3 BLOCKS ARE THE SAME IT IS A STROKE DIFFRENCE
EARLY BLOCKS DO NOT HAVE A MACHINED CHANNEL FOR OIL ON BACK OF BLOCK

GENERATION III 4.8 AND 5.3 BLOCKS 97-98 HAD A 24.5 HOLE DRILLED FOR BETTER BREATHING

GENERATION III 4.8 AND 5.3 BLOCKS IN 99 REINFORCED THE FRONT CORNER AND ADDED A GROVE ON BACK FOR BETTER LIFTER OIL FLOW

GENERATION III TIMING COVER
NON VVT
NON CAM SENSOR HOLE

FRONT WHEEL DRIVE TIMING COVER

GENERATION IV TIMING COVER
NON VVT

GENERATION IV TIMING COVER
VVT

REAR OIL SEAL HOUSING FWD
HAS RELIEF AT TOP FOR FWD BELLHOUSING PATTERN

GENERATION III 4.8 AND 6.0 CAN HAVE NARROW OR WIDE FLANGE TO 2000
4.8 CASTING 12553312
6.0 CASTING 12552215
ALL 5.3 ARE NAROW FLANGE

GENERATION III 4.8 HAVE COUNTER WEIGHTS "AS CAST" NOT MACHINED

GENERATION III + 5.3/5.7/6.0/6.2 HAVE MACHINED COUNTER WEIGHTS

GENERATION III PHASER RINGS CAN BE CHANGED WITH GOODSON RRJ-350 TOOL

GENERATION IV 4.8 USED THE 12553482 CRANK CASTING WITH NAROW .0857 FLANGE BUT HAD 58X RELUCTOR WHEEL INSTEAD OF 24X RELUCTOR FROM GEN III

GENERATION IV 5.3 HAD 12552216 05-06 USED EARLIER 24X RELUCTOR DUE TO ECU NOT BEING UPDATED TILL 07

GENERATION IV 5.3 07-11 USE 12552216 WITH THE 58X RELUCTOR

GENERATION IV 5.3 05-07 FWD FIRST DESIGN USED 12552216 BUT MESURES 13MM SHORTER
MEASURE FLANGE AT 0.750 INSTEAD OF 0.850 USED IN OTHER APPLICATIONS. USED THE 24X RELUCTOR

GENERATION IV 5.3 07-09 2ND DESIGN USED THE SHORTENED 12552216 CASTING WITH 58X RELUCTOR

GENERATION IV 6.0 07-11 USED THE 12552216 CASTING WITH THE 58X RELUCTOR BUT IS BALLANCED DIFFRENT (CLAIMS OF NO DIFFRENCE)

GENERATION III VALLEY CAP HAS TWO HOLES FOR KNOCK SENSORS

GENERATION IV VALLEY CAP NON AFM
NO KNOCKS IN VALLEY

GENERATION IV VALLEY CAP AFM
NO KNOCKS IN VALLEY

ALL CAMSHAFTS ARE INTERCHANGABLE EXCEPT LS6 WITCH HAS A SMALLER BASE CIRCLE SO THE VALVES ARE .6MM LONGER

GENERATION III HAVE A 3 BOLT CAMSHAFT WITHOUT CAM PHASER TRIGGERS
CAMSHAFT SENSOR IS INSTALLED ON BACK OF BLOCK ON VALLEY RIDGE

GENERATION IV 05-06 CAMSHAFTS ARE 3 BOLT WITH PHASER TEETH

GENERATION IV 07+ CAMSHAFTS ARE 1 BOLT WITH 4 PHASER TEETH
NON VVT PICTURED

GENERATION IV 07+ CAMSHAFTS ARE 1 BOLT WITH 4 PHASER TEETH
VVT PICTURED

GENERATION IV 07+ CAMSHAFTS ARE 1 BOLT WITH 4 PHASER TEETH
VVT HAS GROVE ON 2ND JOURNAL FOR VVT OIL CONTROL FEED

GENERATION IV 07+ SQUARE PORT HEADS USE OFFSET ROCKER ARMS

GENERATION III 4.8 HAVE FLAT TOP PISTONS WITH LONGER RODS
121BW
PRE 04 ARE NON COATED SKIRT TYPE (PICTURED)

GENERATION III 5.3 USE A DISHED PISTON AND A SHORTER ROD THAN A 4.8 BUT IS THE SAME BORE

GENERATION III 6.0 LQ4 USES A DISHED PISTON WITH A LARGER BORE THAN THE 5.3/4.8

GENERATION III 6.0 LQ9 USES A FLAT PISTON WITH A LARGER BORE THAN THE 5.3/4.8

GENERATION IV 6.0 USES A DISHED OR FLAT PISTON WITH VALVES RELIEFS ON THE VVT ENGINE

GENERATION III EARLY VERSIONS HAD A NOTCH IN THE HEAD SEALING SURFACE AND MUST BE NOTED. WILL NOT WORK WITH MLS GASKET

GENERATION III EARLY 5.7 HAD 9 PERIMITER VALVE COVER BOLTS

TRAILBLAZER PLATFORM USES AN OIL PAN WITH HOLE FOR AXLE SHAFT

FWD USES CENTER DRAIN SUMP

TRUCKS USE DEEP SUMP
03-07 REAR DRIAN

TRUCKS USE DEEP SUMP
08-09 SIDE DRAIN

F BODY USES SHALLOW SUMP

FLEX FUEL INJECTORS ARE ALL BLACK BODIED

NON FLEX FUEL INJECTORS HAVE SILVER BASED BODIES

EXHAUST MANIFOLD

CALI EMMSION 99-01 HAS AIR INJECTION
HAS EGR

FED EMMSION 99-01 HAVE EGR
02-03 MAY OR MAY NOT HAVE EGR
NO AIR INJECTION

04+ NO EGR
02-04 HAS HUMP WHERE EGR WAS LOCATED
NO DIFFRENCE BETWEEN VERSIONS

BRAKET

PS ALT BRACKET
GEN IV TRUCKS/SUV
TRAILBLAZER TYPE ALL

PS ALT BRACKET
GEN III

LEFT MOTOR MOUNT BRACKET
USED IN TRAILBLAZER TYPE AND SSR

THROTTLE BODY

CABLE 05280
99 4.8 MANUAL TRANS
NEED TO FIND DIFFRENCE

CABLE 05281
99 4.8/5.3 AUTOMATIC
NEED TO FIND DIFFRENCE

CABLE 05326
00-02 SIERRA SILVERADO
02 TAHOE
4.8 MANUAL
NEED TO FIND DIFFRENCE

CABLE 05327
WITH TRACTION CONTROL
00-02 4.8/5.3 SIERRA SILVERADO TAHOE YUKON SUBURBAN
02 AVALANCHE ESCALADE
NEED TO FIND DIFFRENCE

CABLE 05328
W/O TRACTION CONTROL
00-02 4.8/5.3 SIERRA SILVERADO TAHOE YUKON SUBURBAN
02 AVALANCHE
NEED TO FIND DIFFRENCE

ELECTRIC 05400
4.8/5.3/6.0
03-06 AVALANCHE ESCALADE TAHOE YUKON SUBURBAN
03-04 ENVOY ASCENDER RAINIER TRAILBLAZER SSR
04-07 EXPRESS SAVANA
03-07 SIERRA SILVERADO

ELECTRIC 02171
4.8/5.3/6.0
07-08 AVALANCHE ESCALADE H2 H3 SIERRA SILVERADO SUBURBAN TAHOE YUKON
06-09 ENVOY ASCENDER RAINIER 9-7X TRAILBLAZER
06 SSR

ELECTRIC 02212
4.8/5.3/6.0/6.2
09-13 AVALANCHE CORVETTE
12-15 CAMARO
09-12 COLORADO CANYON
09-14 ESCALADE TAHOE YUKON SUBURBAN
09-15 CTS EXPRESS SAVANA
09-10 H2 H3

ELECTRIC 05521
5.3
14-16 SIERRA SILVERADO
15-16 TAHOE YUKON SUBURBAN

ELECTRIC 05520
6.0/6.2
16 CAMARO
14-16 CORVETTE SIERRA SILVERADO
15-16 ESCALADE
16 SUBURBAN
15 YUKON