Difference between revisions of "GM Vortec engine"

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{{Mergeto|GM 54-Degree V6 engine|Talk:GM 54-Degree V6 engine#Merger proposal|date=January 2008}}
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{| class="wikitable" align=right
{{Refimprove|date=June 2008}}
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!rowspan=2|Family
{{Infobox Automobile engine
+
!rowspan=2|Type
| image        =  
+
!rowspan=2|[[Regular_Production_Option|RPO]]
| name          = X25XE
+
!rowspan=2|Name
| aka          =
+
!colspan=3|[[engine displacement|Displacement]]<br>
| manufacturer  = [[GM Europe|General Motors Europe]]
+
|-
| type          = [[V6 engine|V6]] [[petrol engine]]
+
![[Liter|L]] ||[[Cubic inch displacement|cu&nbsp;in]]||[[Cubic centimetre|cc]]
| production    =
+
|-
| predecessor  = [[C25XE]]
+
|rowspan=2|[[GM 122 engine|122]]||rowspan=4|[[Straight-4|I4]]||L43||2200||2.2||134||2189<ref>http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Ecotec/2007_L61.xls</ref>
| successor    = [[Y26SE]]
+
|-
| bore          = {{auto mm|81.6|3}}
+
||LN2||2200||2.2||134||2189<ref>http://media.gm.com/division/2003_prodinfo/03_powertrain/03_truck_engine/index.html</ref>
| stroke        = {{auto mm|79.6|3}}
+
|-
| displacement  = {{auto cc|2498|1}}
+
|rowspan=5|[[GM Atlas engine|Atlas]]||[[GM Atlas engine#LK5|LK5]]||2800||2.8||169||2770<ref>http://media.gm.com/us/powertrain/en/product_services/2006/Spec%20Sheets/Line%20456/2006%20Line%20I4%20Truck%20(LK5).pdf</ref>
| length        =
+
|-
| diameter      =
+
||[[GM Atlas engine#LLV|LLV]]||2900||2.9||178||2921<ref>http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Line%20456/2007_LLV.xls</ref>
| width        =
+
|-
| height        =
+
|rowspan=2|[[Straight-5|I5]]||[[GM Atlas engine#L52|L52]]||3500||3.5||211||3460<ref>http://media.gm.com/us/powertrain/en/product_services/2006/Spec%20Sheets/Line%20456/2006%20Line%20I5%20Truck%20(L52).pdf</ref>
| weight        =
+
|-
| block        = [[cast iron]]
+
||[[GM Atlas engine#LLR|LLR]]||3700||3.7||223||3651<ref>http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Line%20456/2007_LLR.xls</ref>
| head          = [[aluminium alloy]]
+
|-
| valvetrain    = 2x [[DOHC]]
+
||[[Straight-6|I6]]||[[GM Atlas engine#LL8|LL8]]||4200||4.2||254||4160<ref>http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Line%20456/2007_LL8.xls</ref>
| fuelsystem    =
+
|-
| fueltype      = [[gasoline|unleaded petrol]]
+
|rowspan=7|[[Chevrolet Small-Block engine|Gen. I-E]]||rowspan=5|[[V6]]||LB4||4300||4.3||262||4300
| oilsystem    = [[wet sump]]
+
|-
| coolingsystem = [[water]]/[[antifreeze]]
+
||L35||4300||4.3||262||4300<ref>http://media.gm.com/division/chevrolet/products/archive_prod_info/pguide/blazer/blaspec2.htm</ref>
| power        = {{convert|125|kW|hp}}
+
|-
| specpower    =
+
||LF6||4300||4.3||262||4300
| torque        = {{auto Nm|227|0}}
+
|-
| compression  = 10.8:1
+
||LU3||4300||4.3||262||4300<ref>http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Gen%201eV6/07i_LU3.xls</ref>
| fuelcon      =
+
|-
| specfuelcon  =
+
||LG3||4300||4.3||262||4300
| oilcon        =
+
|-
}}
+
|rowspan=22|[[V8]]||L30||5000||5.0||305||5012<ref name=1996ckspecs>http://media.gm.com/division/chevrolet/products/archive_prod_info/pguide/ckpickup/ckpspec2.htm</ref>
{{Infobox Automobile engine
 
| image        =
 
| name          = X30XE
 
| aka          =
 
| manufacturer  = [[GM Europe|General Motors Europe]]
 
| type          = [[V6 engine|V6]] [[petrol engine]]
 
| production    =
 
| predecessor  =
 
| successor    = [[Y32SE]]
 
| bore          = {{auto mm|86|3}}
 
| stroke        = {{auto mm|85|3}}
 
| displacement  = {{auto cc|2960|1}}
 
| length        =
 
| diameter      =
 
| width        =
 
| height        =
 
| weight        =
 
| block        = [[cast iron]]
 
| head          = [[aluminium alloy]]
 
| valvetrain    = 2x [[DOHC]]
 
| fuelsystem    =
 
| fueltype      = [[gasoline|unleaded petrol]]
 
| oilsystem    = [[wet sump]]
 
| coolingsystem = [[water]]/[[antifreeze]]
 
| power        = {{convert|155|kW|hp}}
 
| specpower    =
 
| torque        = {{auto Nm|270|0}}
 
| compression  = 10.8:1
 
| fuelcon      =
 
| specfuelcon  =
 
| oilcon        =
 
}}
 
The '''X25XE''' is a [[GM Europe|General Motors Europe]] (GM) [[petrol engine]]. It is a 2498 cc (2.5L) 24 valve, [[Overhead camshaft#Double overhead camshaft|DOHC]] [[V6 engine]], producing, in standard form {{convert|125|kW|hp}} (170 PS).
 
 
 
The breakdown of the engine name <ref>Topbuzz, "Engine Codes Explained", ''Topbuzz Website'', 2002. Accessed 9 Dec 2006 [http://topbuzz.co.uk/info/engine_codes/engine_codes.htm]</ref> is as follows:
 
 
 
'''X''' - Exhaust Emissions Level: 94/12/EC, stage 2<br>
 
'''25''' - 2.5 Litre displacement<br>
 
'''X''' - Compression Ratio - 10.0-11.5:1<br>
 
'''E''' - Mixture System - Injection
 
 
 
In the early 1990s, GM identified the need for a modern, lightweight and compact power plant to replace its ageing [[straight-6]] engine range. This [[internal combustion engine|engine]] needed to be compact, to allow its use in [[front-wheel drive]] applications, as well as [[rear-wheel drive]] [[automobile|cars]].
 
 
 
The first version arrived in the [[Opel Vectra#Vectra A|Opel Vectra]] / [[Vauxhall Cavalier]] (both codenamed "Vectra-A") and [[Opel Calibra|Opel/Vauxhall Calibra]] in the C25XE form, and was later followed by the X25XE in the [[Opel Omega|Opel/Vauxhall Omega]] and Vectra-B, with the Omega gaining a variant with increased displacement in the form of the '''[[X30XE]]'''.
 
 
 
This power plant was a modern [[multi-valve|4 valve per cylinder]], quad cam arrangement, with an oil to water [[heat exchanger]] mounted within the V of the [[Cylinder block|engine block]]. The [[cylinder head]]s were constructed from aluminium alloy, and the block from [[cast iron]].
 
 
 
An unusual feature of the engine was its 54 degree [[Cylinder (engine)|cylinder]] angle, as opposed to the more conventional 60 degree setup used on many V6 units, this added to the setups' compactness.
 
 
 
A [[Robert Bosch GmbH|Bosch]] [[Motronic]] engine management system is used to control the unit, with full sequential [[fuel injection]], knock control on each bank, [[distributor]]less [[ignition system]] (DIS), and closed loop lambda control.
 
 
 
==Technical data==
 
{| class="wikitable"
 
! '''Engine'''
 
| '''X25XE'''
 
 
|-
 
|-
!configuration
+
||L31||5700||5.7||350||5733<ref name=1996ckspecs/>
|[[V6 engine|V6]] [[petrol engine]]
 
 
|-
 
|-
!displacement (cc)
+
|rowspan=7|[[GM LS engine|Gen. III]]||LR4||4800||4.8||293||4807<ref>http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Gen%20III/2007%20LR4%20V8.xls</ref>
|2498
 
 
|-
 
|-
!bore (mm)
+
||L33||5300||5.3||325||5328<ref>http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Gen%20III/2007%20L33%20V8.xls</ref>
|{{auto mm|81.6|3}}
 
 
|-
 
|-
!stroke (mm)
+
||LM7||5300||5.3||325||5328<ref name=L59LM7/>
|{{auto mm|79.6|3}}
 
 
|-
 
|-
!max power kW @rpm
+
||LM4||5300||5.3||325||5328
|{{convert|125|kW|hp}} @ 6000
 
 
|-
 
|-
!max torque Nm @rpm
+
||L59||5300||5.3||325||5328<ref name=L59LM7>http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Gen%20III/2007%20LM7_L59%20V8.xls</ref>
|{{auto Nm|227|0}} @ 3200
 
 
|-
 
|-
!compression ratio
+
||LQ4||6000||6.0||364||5964<ref>http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Gen%20III/2007%20LQ4%20V8.xls</ref>
|10.8:1
 
 
|-
 
|-
!engine management
+
||LQ9||HO 6000||6.0||364||5964<ref>http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Gen%20III/2007%20LQ9%20V8.xls</ref>
|[[Robert Bosch GmbH|Bosch]] [[Motronic]] M2.8.1 then M2.8.3 in 2000 approx
 
 
|-
 
|-
!idle speed
+
|rowspan=10|[[GM LS engine|Gen. IV]]||LY2||4800||4.8||293||4807<ref>http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Gen%20IV/2007%20Final%20Gen%20IV%20Truck/2007_LY2.xls</ref>
|450-1030
 
 
|-
 
|-
!max rpm
+
||LH6||5300||5.3||325||5328
|6600
 
 
|-
 
|-
!firing order
+
||LY5||5300||5.3||325||5328
|1-2-3-4-5-6
 
|}
 
 
 
{| class="wikitable"
 
! '''Engine'''
 
| '''X30XE'''
 
 
|-
 
|-
!configuration
+
||LMG||5300||5.3||325||5328<ref>http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Gen%20IV/2007%20Final%20Gen%20IV%20Truck/2007_LMG.xls</ref>
|[[V6 engine|V6]] [[petrol engine]]
 
 
|-
 
|-
!displacement (cc)
+
||LC9||5300||5.3||325||5328
| 2960
 
 
|-
 
|-
!bore (mm)
+
||LH8||5300||5.3||325||5328
| {{auto mm|86|3}}
 
 
|-
 
|-
!stroke (mm)
+
||L76||6000||6.0||364||5967<ref>http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Gen%20IV/2007%20Final%20Gen%20IV%20Truck/2007_L76.xls</ref>
| {{auto mm|85|3}}
 
 
|-
 
|-
!max power kW @rpm
+
||LY6||6000||6.0||364||5967<ref>http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Gen%20IV/2007%20Final%20Gen%20IV%20Truck/2007_LY6.xls</ref>
| {{convert|155|kW|hp}} @ 6000
 
 
|-
 
|-
!max torque Nm @rpm
+
||LFA||6000||6.0||364||5967
| {{auto Nm|270|0}} @ 3400
 
 
|-
 
|-
!compression ratio
+
||L92||6200||6.2||376||6162<ref>http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Gen%20IV/2007%20Final%20Gen%20IV%20Truck/2007_L92.xls</ref>
| 10.8:1
 
 
|-
 
|-
!engine management
+
|rowspan=3|[[GM Big-Block engine|Big-Block]]||L21||7400||7.4||454||7439
| [[Robert Bosch GmbH|Bosch]] [[Motronic]] M2.8.1 then M2.8.3 in 2000 approx
 
 
|-
 
|-
!idle speed
+
||L29||7400||7.4||454||7439<ref name=1996ckspecs/>
| 450-1030
 
 
|-
 
|-
!max rpm
+
||L18||8100||8.1||496||8128<ref>http://media.gm.com/us/powertrain/en/product_services/2006/Spec%20Sheets/Big%20Block%20V8/2006%20Big%20Block.pdf</ref>
| 6600
 
 
|-
 
|-
!firing order
 
| 1-2-3-4-5-6
 
 
|}
 
|}
 +
'''Vortec''' is a trademarked name for a line of [[piston engine]]s for [[General Motors Corporation|General Motors]] [[truck]]s. The name first appeared in 1986 on a 4.3&nbsp;L [[V6]] but is now used on a wide range of different engines. Modern Vortec engines are named for their approximate [[Engine displacement|displacement]] in [[cubic centimeters]].
 +
 +
==I4==
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 +
===2200===
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The '''Vortec 2200''' (RPO codes '''L43''' and '''LN2''') is a OHV [[straight-4]] [[truck]] engine. It is entirely different from the [[GM Iron Duke engine|Iron Duke]]. The 2200 uses an iron block and aluminum 2-valve [[pushrod engine|pushrod]] cylinder head. Output is 120&nbsp;hp (89&nbsp;kW) and 140&nbsp;ft·lb (190&nbsp;N·m). Displacement is {{Auto cc|2189}} with an {{convert|89|mm|in|abbr=on}} bore and {{convert|88.00|mm|in|abbr=on}} stroke. 2200s were built in [[Tonawanda, New York]].
 +
 +
LN2 applications:
 +
* [[Chevrolet S-10]]/[[GMC Sonoma]] (base models)
 +
* [[Chevrolet S-10 Blazer]]/[[GMC S-15 Jimmy]]
 +
 +
===2800===
 +
The '''Vortec 2800''', or '''LK5''', is a DOHC 2.8&nbsp;L [[straight-4]] in the [[GM Atlas engine]] family. It produces 175&nbsp;hp (130&nbsp;kW) and 185&nbsp;ft·lb (251&nbsp;N·m) of torque.
 +
The '''Vortec 2800''' is standard equipment on the [[Chevrolet Colorado]] and [[GMC Canyon]]. It is mated to either a 5-speed manual transmission built by Aisin, or a GM 4-speed Hydra-matic automatic transmission.
 +
 +
===2900===
 +
The '''Vortec 2900''', or '''LLV''', is a DOHC 2.9&nbsp;L [[straight-4]] in the [[GM Atlas engine]] family.  Displacement is increased from the '''Vortec 2800''' it replaces to produce 185 hp (138 kW) and 195 ft·lbf (263 N·m) of torque.  First used in the 2007 Chevy Colorado, 2007 GMC Canyon, and 2007 [[Isuzu i-Series|Isuzu i-290]].
 +
 +
==I5==
 +
 +
===3500===
 +
The '''Vortec 3500''', or '''L52''', is a DOHC 3.5&nbsp;L [[straight-5]] in the [[GM Atlas engine]] family. It produces 220&nbsp;hp (164&nbsp;kW) and 225&nbsp;ft·lb (305&nbsp;N·m) of torque.
 +
The '''Vortec 3500''' is optional on Chevy Colorado / GMC Canyon regular and extended cab trucks. It is standard on the Crew Cab Colorado/Canyon, and the [[Hummer H3]].
 +
 +
===3700===
 +
The '''Vortec 3700''', or '''LLR''', is a DOHC 3.7&nbsp;L [[straight-5]] in the [[GM Atlas engine]] family.  Introduced in 2007, the engine has increased in displacement from 3.5&nbsp;L (211&nbsp;cu&nbsp;in) in the '''Vortec 3500''' to 3.7&nbsp;L (223&nbsp;cu&nbsp;in), producing 242 hp (180 kW) and 242 ft·lbf (327 N·m) of torque.  This engine is only offered with the HydraMatic 4L60e automatic trannsmission in the Chevrolet Colorado, GMC Canyon, Hummer H3, and Isuzu i-370 trucks.
 +
 +
==I6==
 +
 +
===4200===
 +
The '''Vortec 4200''', or '''Atlas LL8''', is a 4.2&nbsp;L [[straight-6]] in the [[GM Atlas engine]] family. It has four valves per cylinder and is a double-overhead cam (DOHC) design. Introduced in 2002 for the [[Chevrolet TrailBlazer]], [[GMC Envoy]], and [[Oldsmobile Bravada]], the engine is also in use in the [[Buick Rainier]], [[Saab 9-7]], and the [[Isuzu Ascender]]. The engine was rated at {{convert|275|hp|abbr=on}} and {{convert|275|ft.lbf|N.m|abbr=on}} until the 2007 model year when the GMT360 platform received an increase to {{convert|291|hp|abbr=on}} and {{convert|277|ft.lbf|N.m|abbr=on}}. The Vortec I6 engine was on the ''[[Ward's 10 Best Engines]]'' list every year since its introduction in 2002 through 2005.
 +
 +
==V6==
 +
 +
===4300===<!-- This section is linked from [[V6 engine]] -->
 +
The '''Vortec 4300''' is a 90° [[V6]] [[truck]] engine, replacing the [[Chevrolet Straight-6 engine#Generation 3|Chevrolet 250]] in light trucks and [[Chevrolet_90-Degree_V6_engine#3.3L_.28200_CID.29|{{Auto CID|200}}]] and [[Chevrolet_90-Degree_V6_engine#3.8L_.28229_CID.29|{{Auto CID|229}}]] 90-degree V6s in passenger cars. The 4300 is based on the {{Auto CID|350}} [[Chevrolet]] [[Chevrolet Small-Block engine#350|small-block V8]], and first appeared in 1985 with the [[fuel injection#TBI|throttle-body injected]] '''LB4''' in passenger cars; light trucks and vans used Quadrajet carburetors for 1985. In 1991, the limited-edition [[GMC Syclone]] featured a {{convert|280|hp|abbr=on}} and {{Auto lbft|350}} turbocharged and intercooled '''LB4''' with the first use of multi-point fuel injection on a Vortec V6. The [[fuel injection#CPI|central-port injected]] '''L35''' (Vin 'W') debuted in 1992; the cylinder block was slightly changed, a balance shaft was added to remove minor vibrations, and better breathing yielded {{convert|200|hp}}. Another CPI engine, the '''LF6''', joined in 1996 with the introduction of Vortec cylinder heads, while the LB4 was retired after 1998. In 2002, GM introduced a new [[Fuel_injection#Multi-point_fuel_injection|multi-point injected]] '''LU3''' engine, and a '''LG3''' variant appeared soon after. This engine's origins date back to 1955, when the original Chevy small-block V-8 was introduced.
 +
 +
All Vortec 4300s use a cast iron block and heads and {{convert|4|in|mm|2|abbr=on}} bore and {{convert|3.48|in|mm|2|abbr=on}} stroke, both of which are the same as a 350, which gives them a displacement of {{convert|262.39|CID|cc}}. Connecting rods still measure {{convert|5.7|in|mm|2|abbr=on}} although the rod journal diameter is {{convert|2.25|in|mm|2|abbr=on}}. 1992 and later cylinder blocks used a different timing cover since these engines used a balance shaft (some 1992 production cylinder blocks for the LB4 with TBI induction used the 'traditional' front timing chain cover from the small block Chevrolet). They are [[Overhead valve|OHV]] engines with two valves per cylinder and are produced in [[Tonawanda, New York]] and [[Romulus, Michigan]]. Power output of the new LU3/LG3 engines is {{convert|180|hp|abbr=on}} to {{convert|200|hp|abbr=on}} and {{auto lbft|245}} to {{auto lbft|260}}.
 +
 +
4300 applications:
 +
* 1985-2005 [[Chevrolet Astro]]/[[GMC Safari]]
 +
* 1991-1993 [[GMC Syclone]]/[[GMC Typhoon]]
 +
* 1988-1995 [[Chevrolet Blazer]]/[[GMC Jimmy]]
 +
* 2001-2002 [[Chevrolet Express]]/[[GMC Savana]]
 +
* 1988-2003 [[Chevrolet S-10]]/[[GMC S-15]]
 +
* 1994-2001 [[Oldsmobile Bravada]]
 +
* 1985-2001 [[Chevrolet C/K]]
 +
LU3 applications:
 +
* [[Chevrolet Astro]]/[[GMC Safari]] (base models)
 +
* [[Chevrolet_S-10_Blazer|Chevrolet S10 Blazer / GMC S15 Jimmy]]
 +
* [[Chevrolet Express]]/[[GMC Savana]] (base models)
 +
* [[Chevrolet S-10]]/[[GMC Sonoma]]
 +
* [[Chevrolet Silverado]]/[[GMC Sierra]] (base models)
 +
* [[GMC Envoy]]
 +
* [[Isuzu Hombre]] (optional)
 +
* [[Oldsmobile Bravada]] (base model)
 +
LB4 applications:
 +
* 1991 [[GMC Syclone]]
 +
* 1992–1993 [[GMC Typhoon]]
 +
 +
==V8==
 +
 +
===4800===
 +
 +
====LR4====
 +
 +
The '''Vortec 4800 LR4''' is a Generation III small block [[V8]] [[truck]] engine. Displacement is {{Auto L|4.8}} with a 96.01&nbsp;mm bore and 83&nbsp;mm stroke. It is the smallest of the Generation III Vortec truck engines and was the replacement for the 5.0&nbsp;L [[#5000|5000 L30]]. The LR4 produces {{convert|270|hp}} to {{convert|295|hp}} and {{Auto lbft|285}} to {{Auto lbft|305}}, depending on the model year and application. LR4s are manufactured at [[St. Catharines, Ontario]] and [[Romulus, Michigan]].
 +
 +
LR4 applications:
 +
* 2003-present [[Chevrolet Express]] 2500-3500/[[GMC Savana]] 2500-3500
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* 1999-2007 [[Chevrolet Silverado]]/[[GMC Sierra]]
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* 1999-2006 [[Chevrolet Tahoe]]/[[GMC Yukon]]
 +
 +
====LY2====
 +
 +
The Vortec 4800 LY2 is a Generation IV small block V8 truck engine.  Like its LR4 predecessor, it gets its displacement from a 96.01&nbsp;mm bore and 83&nbsp;mm stroke.  The smallest member of the Generation IV Vortec engine family, it is unique in that it is the only member of that family that does not feature either [[variable valve timing]] or [[Active Fuel Management]].  It is rated at 295 hp (220 kW) and 305 ft·lbf (414 N·m) of torque for all applications.
 +
 +
LY2 applications:
 +
* 2007-present [[Chevrolet Silverado]] 1500
 +
* 2007-present [[Chevrolet Tahoe]]
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* 2007-present [[GMC Sierra]] 1500
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* 2007-present [[GMC Yukon]]
 +
 +
===5000===
 +
The '''Vortec 5000 L30''' is a [[V8]] [[truck]] engine. Displacement is 5.0&nbsp;L. It is a based on the [[Chevrolet Small-Block engine#5.0|Generation I]] [[small-block]] from [[Chevrolet]]. It was replaced by the 4.8&nbsp;L [[#4800|4800 LR4]] for the 2003 [[Chevrolet Express|full-size vans]].  In Van configuration it produces {{convert|230|hp}} Net Flywheel at 4,600 rpm and 290 Net Flywheel Torque at 2,800 rpm.  The engine uses a hydraulic roller cam and high flowing, fast burn style vortec heads.  Differences include bore and stroke, intake valve size, and smaller combustion chambers.
 +
L30 applications:
 +
* [[Chevrolet Express]]/[[GMC Savana]]
 +
* [[General Motors C/K Trucks|General Motors C/K]] full-size trucks
 +
 +
===5300===
 +
 +
 +
====Generation III====
 +
The '''Vortec 5300''', or '''LM7/LM4/L59/L33''', is a [[V8]] [[truck]] engine. It is a stroked (by 9&nbsp;mm) version of the [[#4800|Vortec 4800]] and replaced the [[#5700|5700 L31]]. L59 denoted a [[flexible fuel]] version, while the LM7 was the standard version of the engine.
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 +
Power output is 285-295&nbsp;hp (213-220&nbsp;kW) and torque is {{Auto lbft|325}} to {{Auto lbft|335}}. Displacement is 5.3&nbsp;L ({{Auto cm3in3|5328}}) from 96.01&nbsp;mm bore and 92.00&nbsp;mm stroke. Vortec 5300s are built in [[St. Catharines, Ontario]], [[Romulus, Michigan]], and [[Silao|Silao, Mexico]].
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 +
=====LM7=====
 +
 +
The LM7 Vortec 5300 was introduced in 1999, and can be considered the "garden variety" version of the Generation III 5.3 liter V8's.
 +
 +
LM7 applications:
 +
* 2002-2005 [[Cadillac Escalade]] 2WD
 +
* 2002-2006 [[Chevrolet Avalanche]]
 +
* 2003-2007 [[Chevrolet Express]]/[[GMC Savana]]
 +
* 1999-2007 [[Chevrolet Silverado]] 1500
 +
* 1999-2007 [[GMC Sierra]] 1500
 +
* 1999-2006 [[Chevrolet Suburban]]/[[GMC Yukon XL]]
 +
* 1999-2006 [[Chevrolet Tahoe]]/[[GMC Yukon]]
 +
 +
=====LM4=====
 +
 +
The LM4 was an aluminum block version of the LM7, and had a short production life.  It should not be confused with the L33.
 +
 +
LM4 applications:
 +
* 2004 [[Chevrolet TrailBlazer]] EXT
 +
* 2004 [[GMC Envoy]] XL
 +
* 2004 [[Chevrolet SSR]]
 +
 +
=====L33=====
 +
 +
The L33 was an aluminum block version of the LM7, and was referred to as the Vortec 5300 HO in marketing materials.  Power increased by {{convert|15|hp|abbr=on}}, to {{convert|310|hp|abbr=on}}, over the LM7, and torque was unchanged.  It was only available on extended cab 4WD pickup trucks.
 +
 +
L33 applications:
 +
* 2005-2007 [[Chevrolet Silverado]] 1500 4WD
 +
* 2005-2007 [[GMC Sierra]] 1500 4WD
 +
 +
=====L59=====
 +
 +
The L59 Vortec 5300 was introduced in 2002, and was a [[flexible fuel]] version of the LM7. Power and torque ratings matched that    of the LM7.
 +
 +
L59 applications:
 +
* 2002-2007 [[Chevrolet Silverado]] 1500
 +
* 2002-2006 [[Chevrolet Tahoe]]/[[GMC Yukon]]
 +
* 2002-2006 [[Chevrolet Suburban]]/[[GMC Yukon XL]]
 +
* 2002-2007 [[GMC Sierra]] 1500
 +
 +
====Generation IV====
 +
 +
First introduced in 2005, the Generation IV Vortec 5300 engines share all the improvements and refinements found in other Generation IV engines.  At present, four versions of the 5300 are in production: 2 iron block versions (LY5 and LMG) and 2 aluminum block versions (LH6 and LC9).  All versions feature the [[Active Fuel Management]] system.
 +
 +
=====LH6=====
 +
 +
The '''LH6''' with [[Active Fuel Management]] replaced the LM4 for 2005, and was the first of the [[GM LS engine#Generation IV|Generation IV]] small block V8 truck engines to go into production.  It is the aluminum block counterpart to the LY5.
 +
 +
LH6 applications:
 +
* 2005-2007 [[Chevrolet TrailBlazer]] including EXT
 +
* 2005 [[GMC Envoy XL]]
 +
* 2005 [[GMC Envoy]] XUV
 +
* 2005-2007 [[Buick Rainier]]
 +
* 2005-present [[Saab 9-7X]]
 +
* 2007 [[Chevrolet Silverado]] 1500
 +
* 2007 [[GMC Sierra]] 1500
 +
 +
=====LY5=====
 +
 +
Introduced in 2007, the LY5 Vortec 5300 is the replacement for the LM7 Generation III engine.  For SUV applications, it is rated at 320 hp (239 kW) and 340 ft·lbf (461 N·m) of torque; for pickup truck applications, it is rated at 315 hp (235 kW) and 338 ft·lbf (458 N·m) of torque.
 +
 +
LY5 applications:
 +
* 2007-present [[Chevrolet Avalanche]]
 +
* 2007-present [[Chevrolet Silverado]] 1500
 +
* 2007-present [[Chevrolet Suburban]] 1/2 ton
 +
* 2007-present [[Chevrolet Tahoe]]
 +
* 2007-present [[GMC Sierra]] 1500
 +
* 2007-present [[GMC Yukon]]
 +
* 2007-present [[GMC Yukon XL]] 1/2 ton
 +
 +
=====LMG=====
 +
 +
The LMG Vortec 5300 is the [[Flexible Fuel Vehicle|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.
 +
 +
LMG applications:
 +
* 2007-present [[Chevrolet Avalanche]]
 +
* 2007-present [[Chevrolet Silverado]] 1500
 +
* 2007-present [[Chevrolet Suburban]] 1/2 ton
 +
* 2007-present [[Chevrolet Tahoe]]
 +
* 2007-present [[GMC Sierra]] 1500
 +
* 2007-present [[GMC Yukon]]
 +
* 2007-present [[GMC Yukon XL]] 1/2 ton
 +
 +
=====LC9=====
 +
 +
The LC9 Vortec 5300 is the Flex-Fuel version of the LH6, and is found in 4WD models.  SUV applications are rated at 310 hp (231 kW) and 335 ft·lbf (454 N·m) of torque.
 +
 +
LC9 applications:
 +
* 2007-present [[Chevrolet Avalanche]]
 +
* 2007-present [[Chevrolet Silverado]] 1500
 +
* 2007-present [[Chevrolet Suburban]] 1/2 ton
 +
* 2007-present [[GMC Sierra]] 1500
 +
* 2007-present [[GMC Yukon XL]] 1/2 ton
 +
 +
=====LH8=====
 +
 +
The LH8 Vortec 5300 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 {{convert|300|hp|abbr=on}} at 5200 rpm and {{auto lbft|320}} at 4000 rpm. It has a displacement of {{Auto cm3in3|5328}}. <ref>http://www.gminsidenews.com/index.php?page=Engine_Guide</ref>
 +
 +
LH8 applications:
 +
* 2008-present [[Hummer H3|Hummer H3]]
 +
* 2009-present [[Chevrolet Colorado]]
 +
* 2009-present [[GMC Canyon]]
 +
 +
===5700===
 +
The '''Vortec 5700 L31''' is a [[V8]] [[truck]] engine. Displacement is 5.7&nbsp;L. It is the last production [[Chevrolet Small-Block engine#350|Generation I]] [[small-block]] from [[Chevrolet]].  The cylinder heads feature combustion chambers very similar to those of the [[GM LT engine#LT1|LT1]] V8, but without the reverse-flow cooling. As such, the L31 head is compatible with all older small-blocks, and is a very popular upgrade. It offers the performance of more expensive heads, at a much lower cost. It does, however, require a specific [[intake manifold]] (a Vortec head has four bolts attaching the intake manifold as opposed to the traditional six bolts per head). The L31 was replaced by the 5.3&nbsp;L [[#5300|5300 LM7]]. The 2002 [[model year]] was the final year for the L31 5.7&nbsp;L small block V-8 whose origins date back to 1955. The Vortec 5700 produces {{convert|255|hp}} and {{convert|330|ft.lbf|N.m|abbr=on}} of torque. It is currently being produced as a crate engine for marine applications and automotive hobbyists as the "ramjet 350" with minor modifications.
 +
 +
L31 applications:
 +
* 1996-2003 [[Chevrolet Express]]/[[GMC Savana]] full-size vans
 +
* 1996-1999 [[General Motors C/K Trucks|Chevrolet/GMC C/K]] full-size trucks
 +
* 1996-1999 [[Chevrolet Suburban]]/[[GMC Suburban]] full-size long-wheelbase SUVs
 +
* 1996-1999 [[Chevrolet Tahoe]]/[[GMC Yukon]] full-size short-wheelbase SUVs
 +
* 1999-2000 [[Cadillac Escalade]]
 +
 +
TBI L31 applications
 +
* 1996 G-Series vans over 8,500 GVW w/ 4L80E transmission
 +
 +
Special applications
 +
* [[wienermobile|Oscar Mayer Wienermobile]]
 +
*Isuzu Box Trucks
 +
 +
===6000===
 +
[[Image:2003 Cadillac Escalade EXT HO6000 engine.JPG|right|thumb|250px|HO 6000 engine in a 2003 [[Cadillac Escalade EXT]]]]
 +
 +
====Generation III====
 +
 +
=====LQ4=====
 +
The '''Vortec 6000''', or LQ4, is a [[V8]] [[truck]] engine. It is a bored version of the [[#5300|Vortec 5300]]. Displacement is {{Auto L|6.0}} from 101.6&nbsp;mm bore and 92&nbsp;mm stroke. It is an iron/aluminum (2000 [[model year]] engines had cast iron heads) design and produces {{convert|300|hp}} to {{convert|325|hp}} and {{Auto lbft|360}}  to {{Auto lbft|370}}. LQ4s are built in [[Romulus, Michigan]] and [[Silao|Silao, Mexico]].
 +
 +
LQ4 applications:
 +
* [[Chevrolet Express]]/[[GMC Savana]]
 +
* [[Chevrolet Silverado]] 2500 Pickup, 3500 Pickup, Crew Cab, and Chassis Cab/[[GMC Sierra]] 2500 HD Pickup and Crew Cab, C3, Denali, and 3500 Pickup and Chassis Cab, 1500HD Crew Cab
 +
* [[Chevrolet Suburban]]/[[GMC Yukon XL]] Denali
 +
* [[Hummer H2]] SUT
 +
* [[GMC Yukon]] Denali
 +
 +
=====LQ9=====
 +
The '''Vortec HO 6000''' or '''VortecMAX''' is a special high-output version of the [[#6000|Vortec 6000]] [[V8]] [[truck]] engine originally designed for [[Cadillac (automobile)|Cadillac]]. This engine was introduced in other truck lines as VortecMAX for 2006. It features high-compression (10:1) flat-top pistons for an extra {{convert|10|hp|abbr=on}} and {{convert|10|ft.lbf|N.m|abbr=on}}, bringing output to 345&nbsp;hp (257&nbsp;kW) and 380&nbsp;ft·lb (515&nbsp;N·m). LQ9s are built only in [[Romulus, Michigan]]. GM also listed it as based on LS architecture.[http://www.gmperformanceparts.com/EngineShowcase/index.jsp?engId=LQ9&engine=LQ9&sku=19156262&engCat=ls]
 +
 +
LQ9 Applications:
 +
* 2002-2006 [[Cadillac Escalade]]
 +
* 2002-2006 [[Cadillac Escalade EXT]]
 +
* 2003-2006 [[Cadillac Escalade ESV]]
 +
* 2003-2007 [[Chevrolet Silverado#GMT800|Chevrolet Silverado]] SS
 +
* 2004-2005 [[Chevrolet Silverado#GMT800|Chevrolet Silverado]] and [[GMC Sierra#GMT800|GMC Sierra]] Vortec HO Edition Only [Badging on truck]
 +
* 2006-2007 [[Chevrolet Silverado#GMT800|Chevrolet Silverado]] and [[GMC Sierra#GMT800|GMC Sierra]] VortecMAX Option
 +
 +
====Generation IV====
 +
 +
=====LY6=====
 +
 +
The Vortec 6000 LY6 is a Generation IV small block V8 truck engine.  It shares the same bore and stroke as its LQ4 predecessor, and also features [[variable valve timing]].
 +
 +
LY6 applications:
 +
* 2007-present [[Chevrolet Silverado#GMT900|Chevrolet Silverado]] HD
 +
* 2007-present [[GMC Sierra#GMT900|GMC Sierra]] HD
 +
* 2007-present [[Chevrolet Suburban]] 3/4 ton
 +
* 2007-present [[GMC Yukon XL]] 3/4 ton
 +
 +
=====L76=====
 +
 +
:''See also the [[GM LS engine#L76|automotive L76]]''
 +
The Vortec 6000 L76 is a Generation IV aluminum small block V8 truck engine and features [[variable valve timing|variable cam phasing]], along with [[Active Fuel Management]]. It can be considered the replacement for the Generation III LQ9 engine. It produces 367&nbsp;hp (265&nbsp;kW) at 5400&nbsp;rpm and 375&nbsp;ft·lb (495&nbsp;N·m) at 4400&nbsp;rpm. Production started in late 2006.
 +
 +
L76 applications:
 +
* 2007-present [[Chevrolet Suburban]]
 +
* 2007-present [[Chevrolet Avalanche]]
 +
* 2007-present [[Chevrolet Silverado]]
 +
* 2007-present [[GMC Sierra]]
 +
* 2007-present [[GMC Yukon XL]]
 +
 +
=====LFA=====
 +
 +
The Vortec 6000 LFA is a Generation IV small block V8 truck engine. The LFA variant is used in the GM's hybrid GMT900 trucks and SUVs.  Major features include Active Fuel Management, a late-intake valve timing system, and a higher 10.8:1 compression ratio. It produces 332 hp at 5100 rpm and {{auto lbft|367}} at 4100 rpm.
 +
 +
LFA applications:
 +
* 2008-present [[Chevrolet Tahoe#Hybrid vehicle|Chevrolet Tahoe Hybrid]]
 +
* 2008-present [[Chevrolet Tahoe#Hybrid vehicle|GMC Yukon Hybrid]]
 +
* 2009-present [[Cadillac Escalade#Third_generation .282007-present.29|Cadillac Escalade Hybrid]]
 +
* 2009-present [[Chevrolet Silverado#GMT900|Chevrolet Silverado Hybrid]]
 +
* 2009-present [[Chevrolet Silverado#GMT900|GMC Sierra Hybrid]]
 +
 +
===6200===
 +
The 2007 [[Cadillac Escalade]] has a 6.2&nbsp;L '''Vortec 6200''' (RPO '''L92''') (≈378 cu in) engine. It is an all-aluminum design which, while still a [[pushrod engine]], boasts [[variable valve timing]], a first in a mass-produced non-[[overhead cam]] V8 engine. The system adjusts both intake and exhaust timing between two settings. This engine produces 380&nbsp;hp (301&nbsp;kW) and 417&nbsp;ft·lb (565&nbsp;N·m) in the [[GMC Yukon Denali]]/XL Denali and in the GMC Sierra Denali, and rated at {{convert|403|hp|abbr=on}} and {{convert|415|ft.lbf|N.m|abbr=on}} (441hp with 95 octane export version) in the Hummer and in the Cadillac Escalade.
 +
 +
Applications:
 +
* 2007+ [[Cadillac Escalade]]
 +
* 2008+ [[Chevrolet Tahoe]]
 +
* 2007+ [[GMC Yukon]] Denali/Denali XL
 +
* 2007+ [[GMC Sierra]] Denali
 +
* 2008+ [[Hummer H2]]
 +
* 2009+ [[Chevrolet Silverado]] 1500
 +
 +
===7400===
 +
The '''Vortec 7400''' (RPO '''L29''')(≈452 cu in) was a [[truck]] version of the [[Chevrolet Big-Block engine]]. Introduced in 1996, it was produced for five years until being replaced by the [[#8100|Vortec 8100]]. Even though it was introduced as the Vortec 7400 in 1996, it was basically a 454 big-block with parts more suitable for use in [[light duty trucks]] and more advanced technology.
 +
 +
L29 Applications:
 +
* 1996-2000 [[Chevrolet Silverado]]/[[GMC Sierra]] [[GMC Sierra Classic]] [[2500HD]] & [[3500]] (option)
 +
* 1996-1999 [[Chevrolet Suburban 2500]]/[[GMC Suburban 2500]] (option)
 +
* 1996-2000 [[Chevrolet Express 3/4 or 1 ton]]
 +
 +
The {{Auto Lrev|454}} V8 features MPFI (multi-port fuel injection) and 2 valves per cylinder. Among the many improvements was more power for the gasoline engines. The Vortec 7400 big block V8 has a 107.95 mm bore, 101.6 mm stroke, produces {{convert|290|hp}} at 4000 rpm and {{Auto lbft|410}} at 3200 rpm.
 +
 +
The '''Vortec 7400''' (RPO '''L21''') was a [[Commercial vehicle|Commercial]] version of the [[Chevrolet Big-Block engine]] used in the [[Medium Duty truck]] platform and [[Workhorse Custom Chassis]].  It shares the much from the L29 454, with the addition of forged pistons and crankshaft.  It has slightly reduced hp/torque than the L29 454 and uses a different PCM than the light duty trucks did.  And was used with the early 4 speed [[Allison Transmission|Allison]] [[automatic transmission]] or [[manual transmission]] depending on application.
  
The "X" variant of the engine had the addition of secondary air injection, and EGR to meet later and more stringent emission requirements.
 
  
The air injection blew air via a large blower into the [[exhaust manifold]]s to ignite un-burnt fuel in the downpipes during the engine warm up phase, in order to get the [[catalytic converter]]s up to temperature faster.  The EGR setup re-cycled exhaust gases (which are in theory inert to the combustion cycle) in order to reduce the production of NOx.
+
L21 Applications:
 +
* 1998-2001 [[GMC Kodiac]] 4500 5500
 +
* 1998-1999 [[Chevrolet Suburban 2500]]/[[GMC Suburban 2500]] (option)
 +
* 1998-2000 [[Chevrolet Express 3/4 or 1 ton]]
  
==History==
+
1998-2001 Kodiak/Topkick
Minor changes were made to the unit during its production, including an uprated [[oil pump (internal combustion engine)|oil pump]] around mid 1997, with the addition of larger oilways in the head machining (T-Vents), and modified [[tappet|valve lifters]] to reduce top-end valve noise, at which point the [[timing belt|cam belt]] arrangement also changed with the lower idler moving.
+
1998-2001 P21 Workhorse Chassis
  
Around 1998, the spin-on metal canister [[filter (oil)|oil filter]] was changed to a disposable paper element.
+
===8100===
 +
The '''Vortec 8100''' (RPO '''L18''') is a [[V8]] [[truck]] engine. It is a redesigned [[Chevrolet Big-Block engine]] and was introduced with the 2001 [[Chevrolet Silverado|full-size pickup trucks]]. It retains the same bore centers as the old 7.4&nbsp;L big-blocks, but stroke was upped by 9.4&nbsp;mm to reach 8.1L (496cuin)  for a total of 107.95&nbsp;mm bore and 111&nbsp;mm stroke. It is an all-iron engine (block and heads) with two valves per cylinder. Power output ranges from {{convert|225|hp|abbr=on}} to {{convert|340|hp}} and torque from {{Auto lbft|350}} to {{Auto lbft|455}}. Vortec 8100s are built in [[Tonawanda, New York]]. The Vortec 8100 is the engine used in the largest Uhaul, their {{convert|26|ft|m|sing=on}} truck.  GM stopped installing big block V-8's in the Silverado HD trucks, when the GMT-800 series was discontinued in 2007.
  
2000 saw a complete revision of the power plant in order to meet increasing emission requirements, with the 2.5 and 3.0 being replaced by lower compression 2.6 (Y26SE) and 3.2 (Y32SE) units.
+
L18 Applications:
 +
* [[Chevrolet Silverado]]/[[GMC Sierra]] [[2500HD]] & [[3500]] (option)
 +
* [[Chevrolet Suburban]]/[[GMC Yukon XL]] (option)
 +
* [[Chevrolet Express 3/4 or 1 ton]]
 +
* [[Chevrolet Avalanche 2500]] (std on [[GMT800]] 2500)
 +
* [[T-98 Kombat]]
  
These later power plants had a revised [[engine management system]] setup, which utilised quad lambda sensor control, coil per plug ignition system and [[drive by wire]] throttles.  The 3.2 also received a stronger steel [[crankshaft]].  As a result of these changes the EGR and secondary air injection system were removed.
+
==See also==
 +
* [[List of GM engines]]
  
 
==References==
 
==References==
{{reflist}}
+
{{Reflist}}
  
[[Category:GM engines|2.5L]]
+
[[Category:GM engines|Vortec]]

Latest revision as of 15:27, 3 February 2009

Family Type RPO Name Displacement
L cu in cc
122 I4 L43 2200 2.2 134 2189[1]
LN2 2200 2.2 134 2189[2]
Atlas LK5 2800 2.8 169 2770[3]
LLV 2900 2.9 178 2921[4]
I5 L52 3500 3.5 211 3460[5]
LLR 3700 3.7 223 3651[6]
I6 LL8 4200 4.2 254 4160[7]
Gen. I-E V6 LB4 4300 4.3 262 4300
L35 4300 4.3 262 4300[8]
LF6 4300 4.3 262 4300
LU3 4300 4.3 262 4300[9]
LG3 4300 4.3 262 4300
V8 L30 5000 5.0 305 5012[10]
L31 5700 5.7 350 5733[10]
Gen. III LR4 4800 4.8 293 4807[11]
L33 5300 5.3 325 5328[12]
LM7 5300 5.3 325 5328[13]
LM4 5300 5.3 325 5328
L59 5300 5.3 325 5328[13]
LQ4 6000 6.0 364 5964[14]
LQ9 HO 6000 6.0 364 5964[15]
Gen. IV LY2 4800 4.8 293 4807[16]
LH6 5300 5.3 325 5328
LY5 5300 5.3 325 5328
LMG 5300 5.3 325 5328[17]
LC9 5300 5.3 325 5328
LH8 5300 5.3 325 5328
L76 6000 6.0 364 5967[18]
LY6 6000 6.0 364 5967[19]
LFA 6000 6.0 364 5967
L92 6200 6.2 376 6162[20]
Big-Block L21 7400 7.4 454 7439
L29 7400 7.4 454 7439[10]
L18 8100 8.1 496 8128[21]

Vortec is a trademarked name for a line of piston engines for General Motors trucks. The name first appeared in 1986 on a 4.3 L V6 but is now used on a wide range of different engines. Modern Vortec engines are named for their approximate displacement in cubic centimeters.

I4

2200

The Vortec 2200 (RPO codes L43 and LN2) is a OHV straight-4 truck engine. It is entirely different from the Iron Duke. The 2200 uses an iron block and aluminum 2-valve pushrod cylinder head. Output is 120 hp (89 kW) and 140 ft·lb (190 N·m). Displacement is 2.2 L (2189 cc, 134 cu in) with an 89 mm (3.5 in) bore and 88.00 mm (3.465 in) stroke. 2200s were built in Tonawanda, New York.

LN2 applications:

2800

The Vortec 2800, or LK5, is a DOHC 2.8 L straight-4 in the GM Atlas engine family. It produces 175 hp (130 kW) and 185 ft·lb (251 N·m) of torque. The Vortec 2800 is standard equipment on the Chevrolet Colorado and GMC Canyon. It is mated to either a 5-speed manual transmission built by Aisin, or a GM 4-speed Hydra-matic automatic transmission.

2900

The Vortec 2900, or LLV, is a DOHC 2.9 L straight-4 in the GM Atlas engine family. Displacement is increased from the Vortec 2800 it replaces to produce 185 hp (138 kW) and 195 ft·lbf (263 N·m) of torque. First used in the 2007 Chevy Colorado, 2007 GMC Canyon, and 2007 Isuzu i-290.

I5

3500

The Vortec 3500, or L52, is a DOHC 3.5 L straight-5 in the GM Atlas engine family. It produces 220 hp (164 kW) and 225 ft·lb (305 N·m) of torque. The Vortec 3500 is optional on Chevy Colorado / GMC Canyon regular and extended cab trucks. It is standard on the Crew Cab Colorado/Canyon, and the Hummer H3.

3700

The Vortec 3700, or LLR, is a DOHC 3.7 L straight-5 in the GM Atlas engine family. Introduced in 2007, the engine has increased in displacement from 3.5 L (211 cu in) in the Vortec 3500 to 3.7 L (223 cu in), producing 242 hp (180 kW) and 242 ft·lbf (327 N·m) of torque. This engine is only offered with the HydraMatic 4L60e automatic trannsmission in the Chevrolet Colorado, GMC Canyon, Hummer H3, and Isuzu i-370 trucks.

I6

4200

The Vortec 4200, or Atlas LL8, is a 4.2 L straight-6 in the GM Atlas engine family. It has four valves per cylinder and is a double-overhead cam (DOHC) design. Introduced in 2002 for the Chevrolet TrailBlazer, GMC Envoy, and Oldsmobile Bravada, the engine is also in use in the Buick Rainier, Saab 9-7, and the Isuzu Ascender. The engine was rated at 275 hp (205 kW) and 275 ft·lbf (373 N·m) until the 2007 model year when the GMT360 platform received an increase to 291 hp (217 kW) and 277 ft·lbf (376 N·m). The Vortec I6 engine was on the Ward's 10 Best Engines list every year since its introduction in 2002 through 2005.

V6

4300

The Vortec 4300 is a 90° V6 truck engine, replacing the Chevrolet 250 in light trucks and 200 cu in (3.3 L) and 229 cu in (3.8 L) 90-degree V6s in passenger cars. The 4300 is based on the 350 cu in (5.7 L) Chevrolet small-block V8, and first appeared in 1985 with the throttle-body injected LB4 in passenger cars; light trucks and vans used Quadrajet carburetors for 1985. In 1991, the limited-edition GMC Syclone featured a 280 hp (210 kW) and 350 lb·ft (475 N·m) turbocharged and intercooled LB4 with the first use of multi-point fuel injection on a Vortec V6. The central-port injected L35 (Vin 'W') debuted in 1992; the cylinder block was slightly changed, a balance shaft was added to remove minor vibrations, and better breathing yielded 200 horsepower (150 kW). Another CPI engine, the LF6, joined in 1996 with the introduction of Vortec cylinder heads, while the LB4 was retired after 1998. In 2002, GM introduced a new multi-point injected LU3 engine, and a LG3 variant appeared soon after. This engine's origins date back to 1955, when the original Chevy small-block V-8 was introduced.

All Vortec 4300s use a cast iron block and heads and 4 in (101.60 mm) bore and 3.48 in (88.39 mm) stroke, both of which are the same as a 350, which gives them a displacement of 262.39 cubic inches (4,299.8 cc). Connecting rods still measure 5.7 in (144.78 mm) although the rod journal diameter is 2.25 in (57.15 mm). 1992 and later cylinder blocks used a different timing cover since these engines used a balance shaft (some 1992 production cylinder blocks for the LB4 with TBI induction used the 'traditional' front timing chain cover from the small block Chevrolet). They are OHV engines with two valves per cylinder and are produced in Tonawanda, New York and Romulus, Michigan. Power output of the new LU3/LG3 engines is 180 hp (130 kW) to 200 hp (150 kW) and 245 lb·ft (332 N·m) to 260 lb·ft (353 N·m).

4300 applications:

LU3 applications:

LB4 applications:

V8

4800

LR4

The Vortec 4800 LR4 is a Generation III small block V8 truck engine. Displacement is 4.8 L (≈293 cu in) with a 96.01 mm bore and 83 mm stroke. It is the smallest of the Generation III Vortec truck engines and was the replacement for the 5.0 L 5000 L30. The LR4 produces 270 horsepower (200 kW) to 295 horsepower (220 kW) and 285 lb·ft (386 N·m) to 305 lb·ft (414 N·m), depending on the model year and application. LR4s are manufactured at St. Catharines, Ontario and Romulus, Michigan.

LR4 applications:

LY2

The Vortec 4800 LY2 is a Generation IV small block V8 truck engine. Like its LR4 predecessor, it gets its displacement from a 96.01 mm bore and 83 mm stroke. The smallest member of the Generation IV Vortec engine family, it is unique in that it is the only member of that family that does not feature either variable valve timing or Active Fuel Management. It is rated at 295 hp (220 kW) and 305 ft·lbf (414 N·m) of torque for all applications.

LY2 applications:

5000

The Vortec 5000 L30 is a V8 truck engine. Displacement is 5.0 L. It is a based on the Generation I small-block from Chevrolet. It was replaced by the 4.8 L 4800 LR4 for the 2003 full-size vans. In Van configuration it produces 230 horsepower (170 kW) Net Flywheel at 4,600 rpm and 290 Net Flywheel Torque at 2,800 rpm. The engine uses a hydraulic roller cam and high flowing, fast burn style vortec heads. Differences include bore and stroke, intake valve size, and smaller combustion chambers. L30 applications:

5300

Generation III

The Vortec 5300, or LM7/LM4/L59/L33, is a V8 truck engine. It is a stroked (by 9 mm) version of the Vortec 4800 and replaced the 5700 L31. L59 denoted a flexible fuel version, while the LM7 was the standard version of the engine.

Power output is 285-295 hp (213-220 kW) and torque is 325 lb·ft (441 N·m) to 335 lb·ft (454 N·m). Displacement is 5.3 L (5328 cc (325 cu in)) from 96.01 mm bore and 92.00 mm stroke. Vortec 5300s are built in St. Catharines, Ontario, Romulus, Michigan, and Silao, Mexico.

LM7

The LM7 Vortec 5300 was introduced in 1999, and can be considered the "garden variety" version of the Generation III 5.3 liter V8's.

LM7 applications:

LM4

The LM4 was an aluminum block version of the LM7, and had a short production life. It should not be confused with the L33.

LM4 applications:

L33

The L33 was an aluminum block version of the LM7, and was referred to as the Vortec 5300 HO in marketing materials. Power increased by 15 hp (11 kW), to 310 hp (230 kW), over the LM7, and torque was unchanged. It was only available on extended cab 4WD pickup trucks.

L33 applications:

L59

The L59 Vortec 5300 was introduced in 2002, and was a flexible fuel version of the LM7. Power and torque ratings matched that of the LM7.

L59 applications:

Generation IV

First introduced in 2005, the Generation IV Vortec 5300 engines share all the improvements and refinements found in other Generation IV engines. At present, four versions of the 5300 are in production: 2 iron block versions (LY5 and LMG) and 2 aluminum block versions (LH6 and LC9). All versions feature the Active Fuel Management system.

LH6

The LH6 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. It is the aluminum block counterpart to the LY5.

LH6 applications:

LY5

Introduced in 2007, the LY5 Vortec 5300 is the replacement for the LM7 Generation III engine. For SUV applications, it is rated at 320 hp (239 kW) and 340 ft·lbf (461 N·m) of torque; for pickup truck applications, it is rated at 315 hp (235 kW) and 338 ft·lbf (458 N·m) of torque.

LY5 applications:

LMG

The LMG Vortec 5300 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.

LMG applications:

LC9

The LC9 Vortec 5300 is the Flex-Fuel version of the LH6, and is found in 4WD models. SUV applications are rated at 310 hp (231 kW) and 335 ft·lbf (454 N·m) of torque.

LC9 applications:

LH8

The LH8 Vortec 5300 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 5328 cc (325 cu in). [22]

LH8 applications:

5700

The Vortec 5700 L31 is a V8 truck engine. Displacement is 5.7 L. It is the last production Generation I small-block from Chevrolet. The cylinder heads feature combustion chambers very similar to those of the LT1 V8, but without the reverse-flow cooling. As such, the L31 head is compatible with all older small-blocks, and is a very popular upgrade. It offers the performance of more expensive heads, at a much lower cost. It does, however, require a specific intake manifold (a Vortec head has four bolts attaching the intake manifold as opposed to the traditional six bolts per head). The L31 was replaced by the 5.3 L 5300 LM7. The 2002 model year was the final year for the L31 5.7 L small block V-8 whose origins date back to 1955. The Vortec 5700 produces 255 horsepower (190 kW) and 330 ft·lbf (450 N·m) of torque. It is currently being produced as a crate engine for marine applications and automotive hobbyists as the "ramjet 350" with minor modifications.

L31 applications:

TBI L31 applications

  • 1996 G-Series vans over 8,500 GVW w/ 4L80E transmission

Special applications

6000

HO 6000 engine in a 2003 Cadillac Escalade EXT

Generation III

LQ4

The Vortec 6000, or LQ4, is a V8 truck engine. It is a bored version of the Vortec 5300. Displacement is 6.0 L (≈366 cu in) from 101.6 mm bore and 92 mm stroke. It is an iron/aluminum (2000 model year engines had cast iron heads) design and produces 300 horsepower (220 kW) to 325 horsepower (242 kW) and 360 lb·ft (488 N·m) to 370 lb·ft (502 N·m). LQ4s are built in Romulus, Michigan and Silao, Mexico.

LQ4 applications:

LQ9

The Vortec HO 6000 or VortecMAX is a special high-output version of the Vortec 6000 V8 truck engine originally designed for Cadillac. This engine was introduced in other truck lines as VortecMAX for 2006. It features high-compression (10:1) flat-top pistons for an extra 10 hp (7.5 kW) and 10 ft·lbf (14 N·m), bringing output to 345 hp (257 kW) and 380 ft·lb (515 N·m). LQ9s are built only in Romulus, Michigan. GM also listed it as based on LS architecture.[1]

LQ9 Applications:

Generation IV

LY6

The Vortec 6000 LY6 is a Generation IV small block V8 truck engine. It shares the same bore and stroke as its LQ4 predecessor, and also features variable valve timing.

LY6 applications:

L76
See also the automotive L76

The Vortec 6000 L76 is a Generation IV aluminum small block V8 truck engine and features variable cam phasing, along with Active Fuel Management. It can be considered the replacement for the Generation III LQ9 engine. It produces 367 hp (265 kW) at 5400 rpm and 375 ft·lb (495 N·m) at 4400 rpm. Production started in late 2006.

L76 applications:

LFA

The Vortec 6000 LFA is a Generation IV small block V8 truck engine. The LFA variant is used in the GM's hybrid GMT900 trucks and SUVs. Major features include Active Fuel Management, a late-intake valve timing system, and a higher 10.8:1 compression ratio. It produces 332 hp at 5100 rpm and 367 lb·ft (498 N·m) at 4100 rpm.

LFA applications:

6200

The 2007 Cadillac Escalade has a 6.2 L Vortec 6200 (RPO L92) (≈378 cu in) engine. It is an all-aluminum design which, while still a pushrod engine, boasts variable valve timing, a first in a mass-produced non-overhead cam V8 engine. The system adjusts both intake and exhaust timing between two settings. This engine produces 380 hp (301 kW) and 417 ft·lb (565 N·m) in the GMC Yukon Denali/XL Denali and in the GMC Sierra Denali, and rated at 403 hp (301 kW) and 415 ft·lbf (563 N·m) (441hp with 95 octane export version) in the Hummer and in the Cadillac Escalade.

Applications:

7400

The Vortec 7400 (RPO L29)(≈452 cu in) was a truck version of the Chevrolet Big-Block engine. Introduced in 1996, it was produced for five years until being replaced by the Vortec 8100. Even though it was introduced as the Vortec 7400 in 1996, it was basically a 454 big-block with parts more suitable for use in light duty trucks and more advanced technology.

L29 Applications:

The 7.4 L (454 cu in) V8 features MPFI (multi-port fuel injection) and 2 valves per cylinder. Among the many improvements was more power for the gasoline engines. The Vortec 7400 big block V8 has a 107.95 mm bore, 101.6 mm stroke, produces 290 horsepower (220 kW) at 4000 rpm and 410 lb·ft (556 N·m) at 3200 rpm.

The Vortec 7400 (RPO L21) was a Commercial version of the Chevrolet Big-Block engine used in the Medium Duty truck platform and Workhorse Custom Chassis. It shares the much from the L29 454, with the addition of forged pistons and crankshaft. It has slightly reduced hp/torque than the L29 454 and uses a different PCM than the light duty trucks did. And was used with the early 4 speed Allison automatic transmission or manual transmission depending on application.


L21 Applications:

1998-2001 Kodiak/Topkick 1998-2001 P21 Workhorse Chassis

8100

The Vortec 8100 (RPO L18) is a V8 truck engine. It is a redesigned Chevrolet Big-Block engine and was introduced with the 2001 full-size pickup trucks. It retains the same bore centers as the old 7.4 L big-blocks, but stroke was upped by 9.4 mm to reach 8.1L (496cuin) for a total of 107.95 mm bore and 111 mm stroke. It is an all-iron engine (block and heads) with two valves per cylinder. Power output ranges from 225 hp (168 kW) to 340 horsepower (250 kW) and torque from 350 lb·ft (475 N·m) to 455 lb·ft (617 N·m). Vortec 8100s are built in Tonawanda, New York. The Vortec 8100 is the engine used in the largest Uhaul, their 26-foot (7.9 m) truck. GM stopped installing big block V-8's in the Silverado HD trucks, when the GMT-800 series was discontinued in 2007.

L18 Applications:

See also

References

  1. http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Ecotec/2007_L61.xls
  2. http://media.gm.com/division/2003_prodinfo/03_powertrain/03_truck_engine/index.html
  3. http://media.gm.com/us/powertrain/en/product_services/2006/Spec%20Sheets/Line%20456/2006%20Line%20I4%20Truck%20(LK5).pdf
  4. http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Line%20456/2007_LLV.xls
  5. http://media.gm.com/us/powertrain/en/product_services/2006/Spec%20Sheets/Line%20456/2006%20Line%20I5%20Truck%20(L52).pdf
  6. http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Line%20456/2007_LLR.xls
  7. http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Line%20456/2007_LL8.xls
  8. http://media.gm.com/division/chevrolet/products/archive_prod_info/pguide/blazer/blaspec2.htm
  9. http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Gen%201eV6/07i_LU3.xls
  10. 10.0 10.1 10.2 http://media.gm.com/division/chevrolet/products/archive_prod_info/pguide/ckpickup/ckpspec2.htm
  11. http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Gen%20III/2007%20LR4%20V8.xls
  12. http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Gen%20III/2007%20L33%20V8.xls
  13. 13.0 13.1 http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Gen%20III/2007%20LM7_L59%20V8.xls
  14. http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Gen%20III/2007%20LQ4%20V8.xls
  15. http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Gen%20III/2007%20LQ9%20V8.xls
  16. http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Gen%20IV/2007%20Final%20Gen%20IV%20Truck/2007_LY2.xls
  17. http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Gen%20IV/2007%20Final%20Gen%20IV%20Truck/2007_LMG.xls
  18. http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Gen%20IV/2007%20Final%20Gen%20IV%20Truck/2007_L76.xls
  19. http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Gen%20IV/2007%20Final%20Gen%20IV%20Truck/2007_LY6.xls
  20. http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Gen%20IV/2007%20Final%20Gen%20IV%20Truck/2007_L92.xls
  21. http://media.gm.com/us/powertrain/en/product_services/2006/Spec%20Sheets/Big%20Block%20V8/2006%20Big%20Block.pdf
  22. http://www.gminsidenews.com/index.php?page=Engine_Guide