Difference between revisions of "Chevrolet 90-Degree V6 engine"

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This is a '''list of GM engines''', or more specifically a list of [[engine]] designs that '''[[General Motors Corporation|General Motors]]''' has used in its various products.
{{Infobox Automobile engine
|image
|name=Chevrolet 90° V6 engine
|manufacturer=[[General Motors]]
|production=1978–
|type= 90° [[pushrod engine|OHV]] [[V6 engine|V6]]
|bore = 3.50 in <br> 3.736 in <br> 4.00 in
|stroke = 3.48 in
|displacement = 200&nbsp;cid (3.3&nbsp;L)<br>229&nbsp;cid (3.8&nbsp;L)<br> 262&nbsp;cid (4.3&nbsp;L)
|block = Iron
|head = Iron
|valvetrain = OHV
|related=[[Chevrolet Small Block Engine]]
|similar=[[Ford Essex V6 engine (Canadian)]]<br>[[Chrysler_LA_engine#Magnum_3.9|Chrysler 3.9&nbsp;L V6]]
}}


==Divisions==
The '''[[Chevrolet]] 90° V6''' family of engines began in 1978 with the [[Chevrolet]] 200&nbsp;[[cubic inch displacement|cid]] (3.3&nbsp;L) [[V6]] as the base engine for the all new 1978 [[Chevrolet Malibu]].  This engine family is still produced today, as the 4.3&nbsp;L [[V6]] engine used in Chevrolet trucks and vans.  
From its founding in 1908, GM allowed each of its divisions (including overseas units like [[Opel]] and [[Holden]]) almost complete autonomy in the design and engineering of their various vehicle lines, so long as they fit within the GM hierarchy. Thus, each division (with only a few exceptions) maintained separate and distinct engine designs for many decades.


By the 1970s, GM began to see problems with this approach. For instance, four different North American divisions ([[Chevrolet]], [[Pontiac]], [[Oldsmobile]] and [[Buick]]) offered four completely different versions of a 350&nbsp;cu&nbsp;in V8 engine - very few parts would interchange between the four designs despite their visual similarities, resulting in confusion for owners who (quite naturally) assumed that replacement parts would be usable across the board. In addition to these issues and the obvious overlap in production costs, the cost of certifying so many different engines for tightening worldwide emissions regulations threatened to become very expensive.
These engines have a 90° vee block with 12 valves activated by a [[pushrod]] valvetrain.  All engines have cast iron blocks and cylinder heads.  The engines are based on the [[Chevrolet Small-Block engine]], and the V6 is formed by the removal of the #3 and #6 cylinders. The V6s  share the same 4.4" bore spacing and 9.025" deck height as the V8 engines.  Many parts are interchangeable between the 90° V6 and the small block V8 including valvetrain components, bearings, piston assemblies, lubrication and cooling system components, and external accessories. <ref name="Chevy 90-Degree V6">{{cite web|url=http://www.gmpartsdirect.com/performance_parts/store/catalog/Category.jhtmlCATID=273.html|title=Chevy 90-Degree V6
|accessdate=2008-10-30}}</ref>  The 90-degree V6 engine uses the same transmission bellhousing pattern as the Chevrolet small-block V8 engine. All the engines use a 1-6-5-4-3-2 firing order.<ref name="Chevy Production 90 degree - V6 Engine">{{cite web|url=http://engine.firebirdv6.com/V690.html|title=Chevy Production 90 degree - V6 Engine|accessdate=2008-11-04}}</ref> The engines in this family are [[longitudinal engine]]s, and have only been used in [[Rear_wheel_drive#Rear_wheel_drive_layouts|rear-wheel drive]] cars and trucks.


Thus, by the early 1980s, GM had consolidated its powertrain engineering efforts into a few distinct lines. Generally, North American and European ([[GM Europe]]) engineering units remained separate, with Australia's [[Holden]] and other global divisions borrowing designs from one or the other as needed. GM also worked out sharing agreements with other manufacturers like [[Isuzu]] and [[Nissan]] to fill certain gaps in engineering. Similarly, the company also purchased other automotive firms (like [[Saab Automobile]] and [[GM Daewoo|Daewoo Motor]]), eventually folding their engine designs into the corporate portfolio as well.
== 3.3L (200 CID) ==


Besides GM's core business of automobiles and trucks, the company also maintained several divisions specializing in heavy-duty or industrial engines. These included [[Detroit Diesel]], [[Allison Engine Company|Allison]], and [[Electro-Motive Diesel|Electro-Motive]]. All three produced high-capacity powerplants in a wide variety of types and sizes, most totally unrelated to the automotive divisions. GM eventually spun these divisions off to focus solely on its core business, but the engines they designed while under GM's control are included in this list to illustrate the company's level of engineering ability.
Introduced in 1978, the 200&nbsp;cid replaced the larger [[Chevrolet Straight-6 engine#250|250&nbsp;cid]] as the base engine for Chevrolet's new downsized intermediate line.  The 200&nbsp;cid used a unique 3.5" bore and a 3.48" stroke similar to the Chevrolet 305&nbsp;cid and 350&nbsp;cid V8 engines. These bore and stroke dimensions were later used by the [[Chevrolet_Small-Block_engine#267|267&nbsp;cid]] V8 Cheverolet engine. Also like the small block V8 engines, the 200&nbsp;cid V6 used 2.45" main bearings and 2.10" rod bearing diameters.


==Names==
Being a 90-degree V6, Chevrolet took steps to eliminate the rough running tendencies of the 200. The crankshaft has each of its connecting rod throws offset by 18 degrees for each pair of rods.  This required the connecting rods to have 0.050" narrower ends as well as a thrust bearing to be installed between each pair of rods. However, the connecting rods were still the same 5.7" in length as most other small block Chevrolet V8 engines.  This produced an engine that with a semi-even fire sequence of 132 deg./108 degrees.  <ref name="Chevy Production 90 degree - V6 Engine">{{cite web|url=http://engine.firebirdv6.com/V690.html|title=Chevy Production 90 degree - V6 Engine
In recent years, GM (like many other auto manufacturers) has begun to use specific brand names to market their engines. As a consequence of this, many different families of GM engines use names such as EcoTec and [[GM Vortec engine|Vortec]], even though they may have little or nothing to do with each other from an engineering perspective. (For example, the [[GM Vortec engine#2200|Vortec 2200]] and [[GM Vortec engine#2800|Vortec 2800]] are both inline four-cylinder engines, but they share no parts with each other; additionally, the 2200's basic design predates that of the 2800 by over two decades.)
|accessdate=2008-10-30}}</ref>


On the other hand, some of GM's earliest engine designs (from the company's 1908 founding through the 1930s) have gained [[colloquialism|colloquial]] [[nickname]]s over the years that have reached a level of common usage. The most famous of these may be [[Chevrolet]]'s [[Chevrolet Straight-6 engine|"Stovebolt"]] six-cylinder engine. Other names were used in a semi-formal context, like [[Pontiac]]'s [[Pontiac Straight-8 engine|Silver Streak]] eight-cylinder (Pontiac models carrying this engine often had "Silver Streak" badges or decorations on their bodies, but the engine itself was never officially referred to as such).
The 200&nbsp;cid V6 was only produced for 1978 and 1979.  It was only ever available with a 2-barrel carburetor.  In 1978, the 200&nbsp;cid used the Rochester 2GC carburetor and in 1979 it used a Rochester Dualjet carburetor. The smaller carburetor caused a slight decrease in power.


==Coding==
{| class=wikitable
Within its regional units around the world, GM has traditionally used two different coding methods to identify their engines. Specific codes will not be discussed here, but a breakdown of how they work may be useful for research within individual engine family articles linked to this list.
!Year
!Horsepower
!Torque
!Bore and Stroke
!Carburetor
!Compression Ratio
|-
|1978|| {{convert|95|hp|abbr=on}} @ 3800 rpm||{{Auto lbft|160}} @2000 rpm||3.50" x 3.48" ||2-BBL 2GC||8.20:1
|-
|-
|1979|| {{convert|94|hp|abbr=on}} @ 4000 rpm||{{Auto lbft|154}} @2000 rpm||3.50" x 3.48" ||2-BBL M2ME||8.20:1
|-
|}


===North America===
== 3.8L (229 CID) ==
Since the 1970s, GM's North American divisions have used three-digit [[Regular Production Option|RPO]] ('''R'''egular '''P'''roduction '''O'''ption) codes to identify specific equipment on their various lines of vehicles. RPO codes relating to engines generally begin with an "L"; hence many GM engines have become commonly associated with a particular RPO code - the "L88" V8, "LK5" inline-4, "LX5" V6, etc.


There is no specific rationale for which combination of letters or numbers are used after the initial "L" digit, and it should be noted that (despite thousands of possible combinations) GM has reused many different codes over the years. This can sometimes lead to confusion, especially when engines of similar design use the same codes. (For instance, "LS6" can refer to two totally different Chevrolet V8 engines in both the older [[Chevrolet Big-Block engine|Chevrolet "big-block"]] family and the newer [[GM LS engine|LS]] family.)
The 229&nbsp;cid engine was first introduced for the 1980 model year and was produced until 1984. This engine replaced the [[Chevrolet Straight-6 engine#250|250&nbsp;cid]] in fullsize [[Chevrolet]]s and [[Chevrolet Camaro|Camaro]]s as the new base V6.  Additionally, the intermediate Chevrolet Malibu and Monte Carlo also used the 229&nbsp;cid as a replacement for both the 200&nbsp;cid V6, and the 231&nbsp;cid [[Buick]] V6. Both the 231&nbsp;cid Buick V6 and the 229&nbsp;cid Chevrolet V6 are 90 degree V6 engines, and both are often referred to as the 3.8L V6.  These engines should not be confused as being the same, and are completely unique engine designs.


===Worldwide (outside North America)===
The 229&nbsp;cid has a 3.736" bore and a 3.48" stoke, identical to the Chevrolet 305&nbsp;cid V8 engine. The 229&nbsp;cid used the same 2.45" main bearing and 2.10" rod bearing diameters as the 200&nbsp;cid V6 engine.  Also like the 200&nbsp;cid V6, the 229&nbsp;cid used the same crankshaft with the 18 degree offset throws and the same 5.7" connecting rods with 0.050" narrowed ends.  It came equipped with 1.84" intake valves and 1.50" exhaust valves.  The 229&nbsp;cid V6 was only equipped with a 2-barrel carburetor.  For 1980 the 229&nbsp;cid used a mechanical Dualjet. From 1981 - 1984 the electronic Dualjet was used along with the GM's '''CCC''' (Computer Command Control) system.  The 229&nbsp;cid was rated between 110 and {{convert|115|hp|abbr=on}}.
Led by [[GM Europe]], the company's units outside of North America began using a more organized [[SKU]]-style coding system during the 1980s to classify engines used within their own set of divisions. Though there are some differences, it is a similar style to that used by manufacturers like [[Honda]] or [[Nissan]] and easily indicates several different criteria of a given engine for quick identification. Depending on the engine's particular level of tuning or complexity, codes may range from four to six digits in length.


An example code for a specific [[gasoline]] ([[petrol]]) engine is "C20LET". In this case, "C" indicates use of a [[catalytic converter]], "20" indicates displacement of 2.0 liters, "L" indicates a [[compression ratio]] of 8.5:1 to 9.0:1, "E" indicates use of electronic multi-point [[fuel injection]], and "T" indicates use of a [[turbocharger]]. Codes for [[diesel]] engines are largely similar.
{| class=wikitable
!Year
!Horsepower
!Torque
!Bore and Stroke
!Carburetor
!Compression Ratio
|-
|1980|| {{convert|115|hp|abbr=on}} @ 4000 rpm||{{Auto lbft|175}} @ 2000 RPM||3.736" x 3.48"||2-BBL M2ME||8.60:1
|-
|1981-82|| {{convert|110|hp|abbr=on}} @ 4200 rpm||{{Auto lbft|170}} @ 2000 RPM||3.736" x 3.48"||2-BBL E2ME||8.60:1
|-
|1983-84|| {{convert|110|hp|abbr=on}} @ 4000 rpm||{{Auto lbft|190}} @ 1600 RPM||3.736" x 3.48"||2-BBL E2ME||8.60:1
|-
|}


==Gasoline piston engines==
== 4.3L (262 CID) ==
===Two-cylinder engines===
====Straight (inline) two====
* 1903-1911 '''Buick twin''' (acquired during the founding of GM)
* 1909 '''Oakland twin''' (acquired via GM's purchase of [[Oakland (automobile)|Oakland Motor Car]])


===Three-cylinder engines===
The 4.3L (262&nbsp;cid) V6 is the last and most successful engine in the Chevrolet 90-degree V6 engine family.  This engine was introduced in 1985 as a replacement for the 229&nbsp;cid V6 in the fullsize Chevrolet and the [[Chevrolet El Camino]].  It also replaced the [[Chevrolet Straight-6 engine#250|250&nbsp;cid]] in the Chevrolet fullsize trucks and fullsize vans as the new base six cylinder engine.
====Straight (inline) three====
* 1991-present '''[[Daewoo S-TEC engine|Daewoo S-TEC three]]''' (acquired via GM's 2002 purchase of [[GM Daewoo|Daewoo Motor]])
* 1996-present '''[[GM Family 0 engine|GM Family 0 three]]''' (marketed as '''EcoTec''')
====External (non-GM) designs====
* 1984-present '''[[Suzuki G engine|Suzuki G three]]''' (used in several models built for GM by [[Suzuki]])


===Four-cylinder engines===
The 4.3L V6 has a 4.00" bore and a 3.48" stroke, identical to the 350&nbsp;cid Chevrolet V8 engine.  To create a true even fire engine, Chevrolet produced a crankshaft with 30 degree offsets between each rod pin.  Consequentially, rod journals were increased to a larger 2.25". The connecting rods used on the 4.3L are therefore unique to this engine, being 5.7" in length, but having the larger 2.25" journals. The 4.3L also used larger valves than the 229&nbsp;cid V6, with a 1.94" intake valve and a 1.50" exhaust valve. <ref name="Chevy Production 90 degree - V6 Engine">{{cite web|url=http://engine.firebirdv6.com/V690.html|title=Chevy Production 90 degree - V6 Engine|accessdate=2008-11-04}}</ref>
====Straight (inline) four====
[[Image:1917 Cadillac.jpg|right|thumb|150px|Cadillac four engine]][[Image:91-900-2,1.jpg|right|thumb|150px|Saab H four engine]][[Image:Car show 013.jpg|right|thumb|150px|GM Family 1 four engine]]
* 1905-1914 '''Cadillac four''' (acquired as part of the founding of GM)
* 1905-1923 '''Oldsmobile four''' (acquired as part of the founding of GM)
* 1906-1918 '''Buick four''' (acquired as part of the founding of GM)
* 1906-1916 '''Oakland four''' (acquired as part of the founding of GM)
* 1913-1928 '''[[Chevrolet Straight-4 engine|Chevrolet four]]''' (acquired as part of [[Chevrolet]]'s takeover of, and merger into, GM)
* 1923 '''Chevrolet Copper-Cooled four'''
* 1930s-1965 '''Opel four''' (as used in large Opels like the [[Opel Olympia|Olympia]]; acquired via GM's purchase of [[Opel|Adam Opel]])
* 1960-1963 '''Pontiac Indy Four''' (derived from the '''[[Pontiac V8 engine#195|Pontiac V8]]''')
* 1961-1970 '''Chevrolet 153''' (derived from the '''[[Chevrolet Straight-6 engine#153|Chevrolet six]]''')
* 1962-1993 '''[[Opel OHV engine|Opel OHV four]]''' (as used in small Opels like the [[Opel Kadett|Kadett]])
* 1970-1977 '''[[GM 2300 engine|GM 2300]]'''
* 1976-1993 '''[[GM Iron Duke engine|GM Iron Duke]]'''
* 1981-2003 '''[[GM 122 engine|GM OHV four]]''' (marketed as '''[[GM Vortec engine#2200|Vortec]]''' in truck models)
* 1979-present '''[[GM Family II engine|GM Family II]]''' (marketed as '''EcoTec''', '''D-TEC''' or '''E-TEC''' depending on brand)
* 1981-present '''[[Saab H engine|Saab H]]''' (acquired via GM's 1990 purchase of [[Saab Automobile]])
* 1987-2001 '''[[GM Quad-4 engine|GM Quad-4]]''' ("Twin Cam")
* 1990-2002 '''[[Saturn I4 engine|Saturn four]]'''(1.9L DOHC or SOHC)
* 1991-present '''[[Daewoo S-TEC engine|Daewoo S-TEC four]]''' (acquired via GM's 2002 purchase of [[GM Daewoo|Daewoo Motor]])
* 1996-present '''[[GM Family 1 engine|GM Family 1 four]]''' (marketed as '''EcoTec''', '''D-TEC''' or '''E-TEC''' depending on brand)
* 1996-present '''[[GM Family 0 engine|GM Family 0 four]]''' (marketed as '''EcoTec''')
* 2003-present '''[[GM Atlas engine|GM Atlas four]]''' (marketed as '''Vortec''')


====External (non-GM) designs====
In 1986 and 1987, the 4.3L engine saw engine design upgrades similar to the Chevrolet small block V8.  In 1986, the rear main crankshaft oil seal was changed from a two piece to a once piece seal.  Some 1985 model year vehicles would have a 1986 engine due to service replacement - cylinder blocks were shipped with oil pans. <ref name="Rebuilding the Chevy 262">{{cite web|url=http://www.s10forum.com/Rebuilding_the_Chevy_262.htm|title=Rebuilding the Chevrolet 262|accessdate=2008-12-9}}</ref>1987 saw new center bolt valve covers and hydraulic roller lifters. <ref name="Chevy 4.3L 262ci V-6 - The 3/4 350">{{cite web|url=http://www.hotrod.com/techarticles/engine/113_0208_chevy_43l_262ci_v6_engine_build/index.html|title=Chevy 4.3L 262ci V-6 - The 3/4 350|accessdate=2008-11-04}}</ref>
* 1978-present '''[[Toyota A engine|Toyota A]]''' (used in several models built for GM by [[NUMMI]])
* 1989-present '''[[Subaru EJ engine|Subaru EJ]]''' (used in the [[Saab 9-2X]])
* 1997-present '''[[Toyota ZZ engine|Toyota ZZ]]''' (used in several models built for GM by [[NUMMI]])


===Five-cylinder engines===
For the 1992 model year, the 4.3L had its block design modified to allow a balance shaft to be installed. <ref name="Rebuilding the new Chevy 262">{{cite web|url=http://www.enginebuildermag.com/Article/2427/rebuilding_the_new_chevy_262.aspx|title=Rebuilding the new Chevy 262|accessdate=2008-12-26}}</ref> Even though the 4.3L is an even fire V6, the 90 degree block layout is not ideal for smoothness.  The balance shaft on the 4.3L is installed above the top timing gear, and runs through the top of the lifter valley.  It is gear driven off the timing chain, and therefore a new timing chain cover was designed for these balanced 4.3L V6s. 
====Straight (inline) five====
[[Image:GMC Canyon Vortec 3500 engine.jpg|right|thumb|150px|GM Atlas five engine]]
* 2003-present '''[[GM Atlas engine|GM Atlas five]]''' (marketed as '''Vortec''')


===Six-cylinder engines===
=== LB1 and LB4 ===
====Straight (inline) six====
[[Image:1929 Chevrolet 2-door sedan engine.JPG|right|thumb|150px|Chevrolet "Stovebolt" six engine]]
* 1908-1912 '''Oldsmobile Limited six''' (acquired as part of the founding of GM)
* 1913-1923 '''Oakland Series 60 six'''
* 1913-1915 '''Oldsmobile Series 50 six'''
* 1914-1916 '''Buick Series 50 six'''
* 1916-1923 '''Buick Series 40 six'''
* 1916-1927 '''Oldsmobile Series 30 six'''
* 1923-1930 '''Buick "removable-head" six'''
* 1923-1928 '''Oakland six'''
* 1926-1927 '''[[Pontiac Straight-6 engine|Pontiac "split-head" six]]''' (also modified for GMC Truck models)
* 1928–1936 '''[[Chevrolet Straight-6 engine#1929 Stovebolt era|Chevrolet "Stovebolt" six]]'''
* 1928-1950 '''[[Oldsmobile Straight-6 engine|Oldsmobile F-Series six]]''' (also used in [[Buick Marquette|Marquette]])
* 1928–1954 '''[[Pontiac Straight-6 engine#1930s|Pontiac GMR six]]''' (also modified for GMC Truck models)
* 1930s-1966 '''Opel OHV six''' (as used in large Opels like the [[Opel Kapitän|Kapitän]])
* 1936–1962 '''[[Chevrolet Straight-6 engine#1937|Chevrolet Blue Flame six]]''' (also used in some GMC Truck models)
* 1939–1962 '''[[GMC Straight-6 engine|GMC Truck six]]'''
* 1948-1985 '''Holden six''' (see note below)
* 1962–1990s '''[[Chevrolet Straight-6 engine#Generation 3|Chevrolet "Generation 3" six]]'''
* 1963–1969 '''[[Pontiac Straight-6 engine#215 OHV|Pontiac Tempest six]]''' (derived from the '''[[Chevrolet Straight-6 engine#Generation 3|Chevrolet "Generation 3" six]]''')
* 1966–1993 '''[[Opel Straight-6 engine|Opel]]'''
* 1999-present '''Daewoo XK six''' (marketed as '''E-TEC'''; acquired via GM's purchase of Daewoo Motor)
* 2001–present '''[[GM Atlas engine|GM Atlas six]]''' (marketed as '''Vortec''')


[[Holden]] in Australia used straight-6 engines for a number of years in their family sedan models, with local engines ranging in size from 2.15L (132ci) in the original [[Holden 48-215]] of 1948, to the 3.3L (202ci) six used in the 1970s and 80s, up until 1985 with the [[Holden VK Commodore|VK Commodore]]. These engines were color-coded, often being referred to by the color of their engine block (grey, red, blue, black). These home-grown engines were replaced in the 1986 [[Holden VL Commodore|VL Commodore]] to coincide with new [[gasoline#additives|unleaded fuel]] requirements in Australia. Since the old engine was considered unsuitable, and a new engine hadn't been developed, the VL Commodore sported [[Nissan]]'s [[Nissan RB engine#RB30|RB30]] engine, the last straight six ever used in a Commodore.
In 1985, the 4.3L was either equipped with throttle-body fuel injection, RPO '''LB4''' or a Rochester Quadrajet 4-Barrel carburetor, RPO '''LB1'''. The Chevrolet fullsize sedans and the [[Chevrolet El Camino]] used the '''LB4''' rated at {{convert|130|hp|abbr=on}}. Pick-ups and Vans used the '''LB1''' version rated at {{convert|155|hp|abbr=on}}.  The LB1 used in trucks and vans was referred to as '''Vortec''' in Chevrolet literature, and this name continued to be used with all truck and van 4.3L V6s until present day.
====Horizontally-opposed (flat) six====
[[Image:Chevrolet Corvair 164 Turbo engine.jpg|right|thumb|150px|Chevrolet Corvair six engine]]
* 1959-1969 '''[[Chevrolet Corvair engine|Chevrolet Corvair six]]''' (marketed as '''Turbo-Air''')


====V6====
In 1986, the 4.3L engine used in the [[Chevrolet Caprice]] and El Camino saw an incease in power to {{convert|140|hp|abbr=on}}.  This engine remained unchanged until 1990 when it was last used in taxi and Police Chevrolet Caprices.  In 1986 the Chevrolet Astro and GMC Safari vans used the fuel injected LB4 instead of the LB1. In 1987, the Chevrolet full size pick-ups and fullsize vans were upgraded to use the LB4 throttle-body injection version of the 4.3L.  From 1987 onwards LB4s output was {{convert|160|hp|abbr=on}} for pickups, while fullsize vans were rated at {{convert|150|hp|abbr=on}}.  In 1988 the S-series trucks and S-Blazer and Jimmys had the LB4 4.3L as an available option (the accessory drive was upgraded to a serpentine belt drive). The LB4 continued until 1996 with minor variations in power, but without any major change.
[[Image:Buick lesabre engine 1.jpg|right|thumb|150px|Buick V6 engine]]
{| class=wikitable
General Motors was the pioneer of [[V6]] engines in the United States, with both the first V6 engine in an American truck (GMC models of 1960) and an American car (the Buick Special of 1961). The company later lost interest in the V6 concept, and sold the Buick design to [[Kaiser-Jeep]] in 1967. In the midst of the fuel crisis of the 1970s, GM realized that a V6 engine would be an excellent alternative to bulky [[straight-6|inline six]] and [[V8]] engines, so the company bought the design back and launched what would eventually become the familiar [[Buick V6 engine|3800 V6]] line. From that point on, the company has continued to introduce ever more advanced designs around the world, culminating in the most recent [[GM High Feature engine|High Feature]] engines.
!Year
!Horsepower
!Torque
!Fuel System
!Compression Ratio
!RPO
!Applications
|-
|1985-86|| {{convert|155|hp|abbr=on}} @ 4000 rpm||{{Auto lbft|230}} @ 2400 RPM||4-BBL||9.3:1||LB1||1,2,3
|-
|1985|| {{convert|130|hp|abbr=on}} @ 3600 rpm||{{Auto lbft|210}} @ 2000 RPM||TBI||9.3:1||LB4||4,5
|-
|1986-90|| {{convert|140|hp|abbr=on}} @ 4000 rpm||{{Auto lbft|225}} @ 2000 RPM||TBI||9.3:1||LB4||4,5
|-
|1987-88|| {{convert|145|hp|abbr=on}} @ 4200 rpm||{{Auto lbft|225}} @ 2000 RPM||TBI||9.3:1||LB4||5
|-
|1986|| {{convert|160|hp|abbr=on}} @ 4000 rpm||{{Auto lbft|235}} @ 2400 RPM||TBI||9.3:1||LB4||3
|-
|1987-92|| {{convert|150|hp|abbr=on}} @ 4000 rpm||{{Auto lbft|230}} @ 2400 RPM||TBI||9.3:1||LB4||2
|-
|1987-92|| {{convert|160|hp|abbr=on}} @ 4000 rpm||{{Auto lbft|235}} @ 2400 RPM||TBI||9.1:1||LB4||1,3,6,7
|-
|1993-95|| {{convert|155|hp|abbr=on}} @ 4000 rpm||{{Auto lbft|230}} @ 2000 RPM||TBI||9.1:1||LB4||2
|-
|1993-95|| {{convert|165|hp|abbr=on}} @ 4000 rpm||{{Auto lbft|235}} @ 2000 RPM||TBI||9.1:1||LB4||1,3,6,7
|-
|}


* 1960-2008 '''[[Buick V6 engine|Buick V6]]''' (originally marketed as '''Fireball''', now commonly known as '''3800''')
'''Legend'''
* 1960-1978 '''[[GMC V6 engine|GMC V6]]'''
* 1977-present '''Chevrolet V6''' (derived from the '''[[Chevrolet Small-Block engine|Chevrolet "small-block" V8]]'''; now '''[[GM Vortec engine#V6|GM Vortec V6]]''')
* 1979-present '''[[GM 60-Degree V6 engine|GM 60-Degree V6]]'''
* 1994-2005 '''[[GM 54-Degree V6 engine|GM 54-Degree V6]]'''
* 1998-2002 '''[[GM Premium V engine|GM Premium V6]]'''
* 2003-present '''[[GM High Value engine|GM High Value V6]]'''
* 2004-present '''[[GM High Feature engine|GM High Feature V6]]'''


====External (non-GM) designs====
* 1 - [[Chevrolet C/K]] Trucks, [[Chevrolet C/K|GMC C/K]] Trucks
* 1985-2002 '''[[Nissan RB engine|Nissan RB six]]''' (used in various Holden models)
* 2 - [[Chevrolet Van|Chevrolet G-Series Vans]], GMC G-Series Vans
* 1995-present '''[[Suzuki H engine|Suzuki H V6]]''' (used in several models built for GM by Suzuki)
* 3 - [[Chevrolet Astro]] vans, [[GMC Safari]] Vans - '''NOTE''' - ''LB1 for 1985 only & LB4 not available 1995''
* 1996-present '''[[Honda J engine|Honda J V6]]''' (used in the [[Saturn Vue]])
* 4 - 1985 [[Chevrolet Impala]], 1985-1988 [[Chevrolet Caprice]], 1989-90 Chevrolet Caprice Police/Taxi only, 1985-86 [[Pontiac Parisienne]]
* 5 - 1985-88 [[Chevrolet El Camino]], [[GMC Caballero]], [[Chevrolet Monte Carlo]] - '''NOTE''' - ''140 hp LB4 used 1986 only''
* 6 - 1988-94 [[Chevrolet S-10 Blazer]], [[GMC S-15 Jimmy]] and 1991 [[Oldsmobile Bravada]]
* 7 - 1988-95 [[Chevrolet S-10]] and [[GMC S-15]] Sonoma


===Eight-cylinder engines===
=== LU2 ===
====Straight (inline) eight====
[[Image:Pontiac Straight-8.jpg|right|thumb|150px|Pontiac Silver Streak eight engine]]
* 1930-1936 '''[[Buick Straight-8 engine|Buick eight]]'''
* 1932-1948 '''[[Oldsmobile Straight-8 engine|Oldsmobile eight]]'''
* 1932-1954 '''[[Pontiac Straight-8 engine|Pontiac Silver Streak eight]]'''
* 1934-1936 '''LaSalle eight''' (possibly derived from the '''[[Oldsmobile Straight-8 engine|Oldsmobile eight]]''')
* 1936-1953 '''[[Buick Straight-8 engine|Buick Fireball eight]]'''


====V8====
For the 1990-1991 model years a high ouotput 4.3L V6 was an available option for the Chevrolet Astro and GMC Safari vans.  The '''LU2''' used unique hypereutectic, strutless pistons and a more aggressive camshaft. Like the LB4, the LU2 used throttle-body fuel injection, but was rated at {{convert|170|hp|abbr=on}} and {{convert|260|ft.lbf|N.m|abbr=on}} of torque.  This engine was replaced in 1992 with the L35.
[[Image:Rocket v8.jpg|right|thumb|150px|Oldsmobile Rocket V8 engine]][[Image:2006 Chevrolet Corvette Z06 LS7 engine.jpg|right|thumb|150px|GM LS V8 engine]]
From the 1950s through the 1970s, each GM division had its own V8 engine family. Many were shared among other divisions, but each design is most closely associated with its own division. Today, there are only two types of V8 engines still produced by GM for use in road vehicles: the [[GM LS engine|Generation IV small-block]] and Cadillac's advanced [[DOHC]] V8, the [[GM Premium V engine#Northstar|Northstar]].


* 1914-1935 '''[[Cadillac V8 engine#L-Head|Cadillac Type 51 V8]]''' (also used in [[LaSalle]] models)
{| class=wikitable
* 1915-1917 '''Oakland Model 50 V8'''
!Year
* 1915-1923 '''Oldsmobile Model 40 V8'''
!Horsepower
* 1917-1918 '''Chevrolet Series D V8''' (acquired as part of Chevrolet's takeover of, and merger into, GM)
!Torque
* 1929-1931 '''Viking V8'''
!Fuel System
* 1930-1932 '''Oakland V8''' (used in [[Pontiac]] models during the final year)
!Compression Ratio
* 1935-1948 '''[[Cadillac V8 engine#L-Head|Cadillac Series 60 V8]]''' (also used in LaSalle models)
!RPO
* 1948-1967 '''[[Cadillac V8 engine#OHV|Cadillac OHV V8]]'''
!Applications
* 1967-1984 '''[[Cadillac V8 engine#World's_largest|Cadillac "new" V8]]'''
|-
* 1981-1995 '''[[Cadillac V8 engine#Aluminum_OHV|Cadillac HT V8]]'''
|1990-92|| {{convert|170|hp|abbr=on}} @ 4600 rpm||{{Auto lbft|260}} @ 3400 RPM||TBI||9.1:1||LU2||1
* 1948-1990 '''[[Oldsmobile V8 engine|Oldsmobile Rocket V8]]'''
|-
* 1952-1980 '''[[Buick V8 engine|Buick Fireball V8]]'''
|}
* 1954-2003 '''[[Chevrolet Small-Block engine|Chevrolet "small-block" V8]]''' (originally "Turbo-Fire", now referred to as GM Generation I; see also [[GM Vortec engine]])
* 1954-1980 '''[[Pontiac V8 engine|Pontiac V8]]''' (also modified for GMC Truck models)
* 1958-1965 '''[[Chevrolet Big-Block engine|Chevrolet W V8]]''' (also referred to as "Turbo-Thrust")
* 1961-1963 '''[[Buick V8 engine#215|GM Aluminum V8]]''' (now better known as the [[Rover V8 engine|Rover V8]])
* 1966-1970s '''[[GMC V8 engine|GMC Truck V8]]''' (derived from the '''[[GMC V6 engine|GMC V6]]''')
* 1965-present '''[[Chevrolet Big-Block engine#Generation 2:_Mark_IV_Series|Chevrolet "big-block" V8]]''' (originally "Turbo-Jet"; see also [[GM Vortec engine]])
* 1991-present '''[[GM Premium V engine|GM Northstar V8]]''' (also known as the [[Oldsmobile Aurora|Aurora]] V8)
* 1992-1997 '''[[GM LT engine|GM LT V8]]''' (also referred to as Generation II; derived from Small-Block V8)
* 1996-present '''[[GM LS engine|GM LS V8]]''' (referred to as Generation III or IV, depending on type; derived fron LT V8; see also [[GM Vortec engine]])
* 1996-present '''[[GM Vortec engine#V8|GM Vortec V8]]''' (derived from Small-Block, LS, and Big-Block engines)


===Multi-cylinder engines===
'''Legend'''
====V12====
[[Image:1931Cadillac370AcoupeV12-engine.jpg|right|thumb|150px|Cadillac Twelve engine]]
* 1930-1937 '''[[Cadillac V16 engine#V12|Cadillac Twelve]]''' (derived from the '''[[Cadillac V16 engine|Cadillac Sixteen]]''')
* 1931-1944 '''[[Allison V-1710]]''' (aviation engine)
* 1960s-1966 '''[[GMC V6 engine|GMC Twin Six]]''' (derived from the '''[[GMC V6 engine|GMC V6]]''')


Several other V12 engines, designed for use in Cadillac models, have been proposed by GM over the years but have not yet managed to reach series production.
* 1 - [[Chevrolet Astro]] vans, [[GMC Safari]] Vans - optional on extended length models
====V16====
* 1930-1937 '''[[Cadillac V16 engine#Series 452|Cadillac Sixteen OHV]]'''
* 1937-1940 '''[[Cadillac V16 engine#Series 90|Cadillac Sixteen L-Head]]'''


As with the V12, Cadillac has recently considered production of a modern V16 as well, but has not gotten beyond production of prototypes and one well-regarded [[Cadillac Sixteen|concept vehicle]] supporting the idea.
=== L35 CPI ===


====W24====
1992 introduced a new version of the 4.3L, the '''L35'''.  This version of the 4.3L was equipped with '''CPI''' (Central Port Fuel Injection).  This system had one centrally located fuel injector distribute fuel to six hoses each with a poppet valve to each of the intake ports.  This system allowed for a multi-point injection, using one injector.  The fuel injection was a batch fire system and used a two piece cast aluminum dual-plenum manifold.  This engine was available in  [[Chevrolet S-10 Blazer|S-10 Blazers]] and [[Chevrolet S-10 Blazer|S15-Jimmys]] and [[Chevrolet Astro|Astro]] and [[GMC Safari|Safari]] vans only.  The L35 was rated at {{convert|200|hp|abbr=on}} and {{convert|260|ft.lbf|N.m|abbr=on}} of torque. 
* 1937-1944 '''[[Allison V-3420]]''' (aviation engine; derived from the '''[[Allison V-1710]]''')


==Diesel piston engines==
{| class=wikitable
''This list may be incomplete.''
!Year
===GM designs===
!Horsepower
[[Image:Shop engines.jpg|right|thumb|150px|Detroit Diesel Series 92 engines]]
!Torque
!Fuel System
!Compression Ratio
!RPO
!Applications
|-
|1992-94|| {{convert|200|hp|abbr=on}} @ 4500 rpm||{{Auto lbft|260}} @ 3600 RPM||CPI||9.1:1||L35||1,2,3
|-
|1995|| {{convert|190|hp|abbr=on}} @ 4500 rpm||{{Auto lbft|260}} @ 3400 RPM||CPI||9.1:1||L35||1
|-
|1995|| {{convert|191|hp|abbr=on}} @ 4500 rpm||{{Auto lbft|260}} @ 3400 RPM||CPI||9.1:1||L35||3
|-
|1995|| {{convert|195|hp|abbr=on}} @ 4500 rpm||{{Auto lbft|260}} @ 3400 RPM||CPI||9.1:1||L35||2
|-
|}


GM diesels stem from the acquisition of [[Winton (automobile)|Winton Engine Corporation]] in 1930. Winton was based in Cleveland, and initial production continued in that city. These were mid-sized engines. The main customer of Winton was the [[Electro-Motive Diesel|Electro Motive Corporation]], the pioneering producer of diesel-electic locomotives. GM acquired Electro Motive at roughly the same time as Winton. These two companies were merged to became the Electro Motive Division (EMD) of GM in 1941, which was responsible for locomotive production and engine design. A further division, the [[Cleveland Diesel Engine Division]], was responsible for submarine, marine and stationary versions of the EMD engines. Finally, in 1937 GM set up a third diesel division in Detroit, the [[Detroit Diesel]] Engine Division. The Electro Motive Division was responsible for mid- and large-displacement engines (over 150 cubic inches per cylinder) while the Detroit Diesel Division was responsible for small-displacement engines (50 through 149 cubic inches displacement). The Canadian market was served by a single company, [[General Motors Diesel]], which produced versions of the EMD and Detroit engines.
'''Legend'''


* 1920s-1939 '''Winton 201-A''' (industrial engine; acquired via GM's 1930 purchase of [[Winton Engine Company|Winton Engine]] and [[Electro-Motive Diesel|Electro-Motive]])
* 1 - [[Chevrolet Astro]] vans, [[GMC Safari]] Vans - '''NOTE''' ''std on AWD, opt on 2WD models''
* 1938-1966 '''[[EMD 567]]''' (industrial engine)
* 2 - [[Chevrolet S-10 Blazer]], [[GMC S-15 Jimmy|GMC Jimmy]] and [[Oldsmobile Bravada]] - '''NOTE''' - ''Oldsmobile Bravada not produced in 1995''
* 1938-1980s '''[[Series 71|GM Diesel Series 71]]''' (now better known as a Detroit Diesel product)
* 3 - [[Chevrolet S-10]] and [[GMC Sonoma]]
* 1945-1965 '''[[Detroit Diesel 110|GM Diesel Series 110]]'''
* 1950-1955 '''[[Series 51|GM Diesel Series 51]]'''
* 1957-1990s '''[[Series 53|GM Diesel Series 53]]'''
* 1960s-1970s '''GMC Toro-Flow''' (derived from the '''[[GMC V6 engine|GMC V6]]''')
* 1960s-1980s '''[[Series 149|GM Diesel Series 149]]''' (now better known as a Detroit Diesel product)
* 1965-1980s '''[[EMD 645]]''' (industrial engine)
* 1974-present '''[[Series 92|Detroit Diesel Series 92]]'''
* 1977-1985 '''Oldsmobile Diesel'''
* 1981-2000 '''[[Detroit Diesel V8 engine|Detroit Diesel V8]]'''
* 1984-present '''[[EMD 710]]''' (industrial engine)
* 1980s-present '''[[Detroit Diesel 60|Detroit Diesel Series 60]]'''
* 1988-present '''[[Circle L engine|Isuzu Circle L]]''' (marketed as '''EcoTec DTi'''; acquired via GM's 2003 takeover of [[DMAX (engines)|DMAX)]]
* 1998-present '''[[EMD 265]]''' (industrial engine)
* 2000-present '''[[Duramax V8 engine|DMAX Duramax V8]]''' (acquired via GM's 2003 takeover of DMAX)
* 2002-present '''[[DMAX V6 engine|DMAX V6]]''' (acquired via GM's 2003 takeover of DMAX)


===External (non-GM) designs===
=== L35 and LF6 SCPI ===
* 1997-present '''[[JTD engine|Fiat JTD]]''' (marketed as '''EcoTec CDTi''' or '''TiD''' depending on brand; used via a sharing agreement between [[Fiat]] and GM)
* 2000s-present '''[[List of VM Motori engines#RA_420|VM Motori]]''' RA 420 (marketed as '''EcoTec CDTi''' or '''VCDi''' depending on brand)


==Jet engines==
Major design changes to the 4.3L V6 for the 1996 model year.  Like other small block Chevrolet V8s, the 4.3L engine received redesigned heads which had improved airflow and combustion efficiency. These heads are referred to as '''Vortec''' heads.  Furthermore the 4.3L was upgraded to receive sequential port fuel injection.  The fuel system uses six centrally mounted injectors firing into six nylon hoses with poppet valves leading to each intake port.  This system was call '''SCPI''' (Sequential Central Port Injection).  This 4.3L used a two piece manifold, with the upper half manufactured from a composite plastic and the lower half manufactured from cast aluminum.
''This list may be incomplete.''
===Propfan===
* '''Allison 578-DX'''
===Turboprop===
* 1953-1955 '''[[Allison T40]]'''
===Turboshaft===
* 1954-present '''[[Allison T56]]''' or '''501-D''' (now better known as a [[Rolls-Royce Limited|Rolls-Royce]] product)
* 1960s-present '''[[Allison 250]]''' (now better known as a Rolls-Royce product)
===Turbojet===
* 1944-1959 '''[[Allison J33]]''' (originally developed by [[General Electric]] and transferred to GM for production)
* 1946-1955 '''[[Allison J35]]''' (originally developed by General Electric and transferred to GM for production)
* 1948-1958 '''[[Allison J71]]'''


==Notes on GM's automotive diesel history==
This engine came in two versions, the '''LF6''' rated at {{convert|175|hp|abbr=on}} - {{convert|180|hp|abbr=on}}, and the '''L35''' rated at 180 - {{convert|200|hp|abbr=on}}.  Only the S-series pick-ups used the LF6, while the fullsize trucks, vans and Blazer and Jimmy used the L35 version.  The L35 was optional on the S-Series trucks.
In the face of the [[1979 energy crisis|1970's 'gas crisis']], GM turned to Diesel power for economic benefit, directing the [[Oldsmobile]] division to develop a [[V6]] and two [[V8]] engines, to be shared with all divisions.


These Diesel engines were designed to fit into the engine bays of gasoline powered automobiles, but despite popular belief, they were not "converted" gasoline engines. Oldsmobile's diesel engines, the 5.7&nbsp;L ''[[Oldsmobile V8 engine#LF9|LF9]]'' and 4.3&nbsp;L ''[[Oldsmobile V8 engine#LF7|LF7]]'' V8s and 4.3&nbsp;L ''[[Oldsmobile Diesel V6 engine|LT6/LT7/LS2]]'' V6, were notoriously unreliable, particularly in the earliest versions, though reliability had improved by the early 1980s with the advent of the DX block, along with better fuel filtering and water separators.  By the early 80s,the 5.7L diesel was a fairly reliable engine with the introduction of the rollerized camshaft/roller lifter combination and had many improved enhancements that the late 70's 5.7L diesel engines did not have.  Many of the reliability issues these engines developed were a combination of faults not just related to design. Many of these engines suffered major malfunctions from poor quality fuel, mechanics not properly trained in diesel repair, and even improper owner service and maintenance. Although over one million were sold between 1978 and 1985, the failure rate of GM's engines ruined the reputation of Diesel engines not just built by GM, but overall in the United States market. Eventually, a [[class action]] lawsuit resulted in an arbitration system under the supervision of the [[Federal Trade Commission]] where consumers could claim 80% of the original cost of the engine in the event of a failure.
{| class=wikitable
!Year
!Horsepower
!Torque
!Fuel System
!Compression Ratio
!RPO
!Applications
|-
|1996|| {{convert|170|hp|abbr=on}} @ 4400 rpm||{{Auto lbft|235}} @ 2800 RPM||SCPI||9.2:1||LF6||5
|-
|1997-2002|| {{convert|175|hp|abbr=on}} @ 4400 rpm||{{Auto lbft|240}} @ 2800 RPM||SCPI||9.2:1||LF6||5
|-
|1996-2002|| {{convert|180|hp|abbr=on}} @ 4400 rpm||{{Auto lbft|240}} @ 2800 RPM||SCPI||9.2:1||LF6||6
|-
|1996-2002|| {{convert|180|hp|abbr=on}} @ 4400 rpm||{{Auto lbft|245}} @ 2800 RPM||SCPI||9.2:1||L35||5
|-
|1996-2002|| {{convert|190|hp|abbr=on}} @ 4400 rpm||{{Auto lbft|250}} @ 2800 RPM||SCPI||9.2:1||L35||3,4,6
|-
|1996-2002|| {{convert|200|hp|abbr=on}} @ 4400 rpm||{{Auto lbft|250}} @ 2800 RPM||SCPI||9.2:1||L35||2
|-
|1996-1998|| {{convert|200|hp|abbr=on}} @ 4400 rpm||{{Auto lbft|255}} @ 2800 RPM||SCPI||9.2:1||L35||1
|-
|1999-2002|| {{convert|200|hp|abbr=on}} @ 4600 rpm||{{Auto lbft|260}} @ 2800 RPM||SCPI||9.2:1||L35||7
|-
|}


The Oldsmobile 5.7 liter engines experienced a wide gamut of malfunctions.  One of the common failures was with crankshaft bearings.  This was frequently attributed to owners and maintainers running the engines on SG rated oil (intended for gasoline engines), versus CD oil (intended for Diesel engines).  This prompted GM to introduce the DX block which then allowed extended oil change intervals to {{convert|5000|mi|km|-2}}.  D block engines required frequent oil change intervals because of the friction created between the typical flat tappet camshaft and hydraulic lifters.  When the oil change interval was ignored,excessive wear was placed upon the camshaft and lifters.  In 1981 when the DX block was introduced, the rollerized camshaft and roller lifters did away with any possibility of worn camshaft lobes because of reduced friction.  These engines also suffered from blown head gaskets, warped heads, bad injector pumps, and bad injectors.  The beginnings of these problems can be attributed to poor quality diesel fuel that may have contained water or other contaminants.  These materials would damage the inside of the injector pump, and then eventually clog injectors.  If water was injected into the engine or leaked in from the coolant system, it could cause a "hydrolock" which would blow head gaskets and bend valves / connecting rods because water is incompressible.  Water in the fuel also causes the injectors to rust internally, affecting injection timing and causing the engine to run excessively hot, which can warp heads.  This was the reason GM equipped later cars with water detectors and double filtration systems on their vehicles.
'''Legend'''


Torque-to-yield fastners - which stretch and can only be used once, but provide higher clamping force than traditional head bolts - were used to retain the Diesel cylinder heads.  When a hapless owner took the vehicle in for repair, the mechanic would resurface the head, making it thinner, install a new head gasket, and then reuse the old, stretched-out fasteners.  It would not be but a few thousand miles, and the vehicle was in the shop again for head gasket failure or a warped head.  Nowadays high performance head bolt kits are available to do away with the problems the 5.7L diesel engines had such as the blown head gasket fiasco.  Performance bolt fasteners when used within the 5.7L diesel will then make it a bulletproof, reliable design.  The frustrated owner would frequently just get the shop to convert the engine to gasoline after a few repeated failures like this. As a side note, these diesel engine blocks were frequently sought by hot-rodders to build high-performance gasoline engines because of their extra heavy duty components which would withstand extreme horsepower.
* 1 - [[Chevrolet C/K]] Trucks, [[Chevrolet C/K|GMC C/K]] Trucks
* 2 - [[Chevrolet Express]], [[GMC Savana]] Vans
* 3 - [[Chevrolet Astro]] vans, [[GMC Safari]] Vans
* 4 - [[Chevrolet S-10 Blazer|Chevrolet Blazer]], [[GMC S-15 Jimmy|GMC Jimmy]], 1996-2001 [[Oldsmobile Bravada]]
* 5 - [[Chevrolet S-10]] and [[GMC Sonoma]] (2WD)
* 6 - [[Chevrolet S-10]] and [[GMC Sonoma]] (4WD)
* 7 - [[Chevrolet Silverado]] and [[GMC Sierra]] trucks


In the 1980s and 1990s GM produced the [[Detroit Diesel V8 engine|6.2&nbsp;L and 6.5 liter]] V8 Diesels for use in light trucks and in the [[HMMWV]].
===  LU3 and LG3 MPFI ===


Today, GM uses Diesel engines from a joint corporation between GM and [[Isuzu]] [[Dmax]] (for trucks) but offers no domestic Diesel passenger cars. General Motors' [[Opel]] division is one of the leading proponents of Diesel cars in Europe, however.
2002 saw major changes to the 4.3L fuel injection system.  For 2002 California emission [[Chevrolet Astro]]s, [[GMC Safari]]s, [[Chevrolet Silverado]]s and [[GMC Sierra]]s all came equipped with the updated '''LU3''' 4.3L. 2003 saw the L35 discontinued and the LU3 replacing it in all other applications.  A new variation was also introduced in 2003, the '''LG3'''.  For 2004 to 2009 the '''LU3''' has been the only 4.3L produced.
In the 1970s, Opel developed the first Opel Diesel engine ever. This 2.1-litre engine made some records in a car specially built for this purpose, the Opel Rekord D (2100 cc, 60 hp).  Later versions were used in the Rekord E and the Ascona B.
Vehicles using these engines could be identified by a little "hill" in their hoods.  Without this "hill" in the hood, the space for the engine would have been too small.
Kadett D, E and Ascona B and C models also used an Opel engine (1600 cc, 54 hp).
Later Isuzu engines were installed, namely for the Corsa A (1500 cc, {{Convert|50|hp|kW|0|abbr=on}} and 1500, turbo, 67 hp) as well as for the Kadett E and Vectra A (Vectra A TD: 82 hp).


Opel today uses [[common rail]] [[direct injection]] engines designed and produced by [[Fiat|Fiat S.p.A]] ([[MultiJet]]) and [[Isuzu]] ([[Circle L engine|Circle L]]). Ownership of both designs was acquired by GM in 2005, and a new [[GM Powertrain Europe]] division in [[Turin, Italy]] (home of Fiat) was founded to manage these assets. The Fiat Diesel engine has 1900 cc, but before this cooperation, Opel had already developed two of their own engines, namely 2-litre Diesels with 82 and {{Convert|100|hp|kW|-1|abbr=on}}; which were installed mostly in the Vectra B.
The biggest change to the LU3 and LG3 was the fuel injection system.  These engines used a multipoint fuel injection system, with six Multec II fuel injectors mounted at each intake port on the manifold. The composite upper intake manifold and cast aluminum lower intake from the L35 engine is also used on the LU3. The LG3 uses a cast aluminum upper intake and a cast iron lower intake. <ref name="Vortec 4300 4.3L V6 (LG3/LU3) Truck Engines">{{cite web|url=http://www.media.gm.com/division/powertrain/products/engine/truckengines/2003/truck_benefits/l35_lu3_lg3.doc|title=Vortec 4300 4.3L V6 (LG3/LU3) Truck Engines
[[GM Daewoo]] recently licensed two common rail designs from [[VM Motori]].
|accessdate=2008-11-04}}</ref>


Many of the failures and complaints GM endured have shaped the design of Diesel engines today to be quite reliable and good performing engines. Today's Diesels have excellent fuel filtration systems to minimize failures of injection systems. Many manufacturers require owners to use specific types of oils in their diesel engines, and the use of these oils must be proven for warranty claims (Volkswagen TDI). Drivers also complained of the lack of power, unpleasant noise, and the dirty, smelly exhaust from early GM diesels. Today's diesels with common-rail injection tackle all these shortcomings. They are extremely efficient, yet provide significantly more power than older diesels, and they do so with significantly less pollution and noise. Today's dealer mechanics have also undergone the proper training to service the engines properly.
The LU3 also received a '''quiet cam''' to help reduce vibration at both idle and high engine speeds.  This camshaft used the same lift and duration as the older design, but the cam was reprofiled to keep the valve lifters in full contact with the cam lobes as the cam ramps down. <ref name="Vortec 4300 4.3L V6 (LG3/LU3) Truck Engines">{{cite web|url=http://www.media.gm.com/division/powertrain/products/engine/truckengines/2003/truck_benefits/l35_lu3_lg3.doc|title=Vortec 4300 4.3L V6 (LG3/LU3) Truck Engines
|accessdate=2008-11-04}}</ref>


==See also==
The LG3 was used in Chevrolet and GMC S-series pickups and was only produced for 2003.  The LU3 was used in the Chevrolet and GMC fullsize trucks and vans, the Chevrolet Astro and GMC Safari vans and the Chevrolet S-10 Blazer and GMC S-15 Jimmy.  The LG3 was rated at {{convert|180|hp|abbr=on}} and {{convert|245|ft.lbf|N.m|abbr=on}} of torque.  The LU3 was rated at 190-200 hp and 250-260 ft·lbf of torque.
* [[List of GM bellhousing patterns]]


{{General Motors|state=collapsed}}
{| class=wikitable
{{General Motors brands|state=collapsed}}
!Year
{{Machine configurations|state=collapsed}}
!Horsepower
!Torque
!Fuel System
!Compression Ratio
!RPO
!Applications
|-
|2003|| {{convert|180|hp|abbr=on}} @ 4400 rpm||{{Auto lbft|245}} @ 2800 RPM||MPFI||9.2:1||LG3||5
|-
|2003-05|| {{convert|190|hp|abbr=on}} @ 4400 rpm||{{Auto lbft|250}} @ 2800 RPM||MPFI||9.2:1||LU3||3,4,6
|-
|2002-2003|| {{convert|200|hp|abbr=on}} @ 4400 rpm||{{Auto lbft|250}} @ 2800 RPM||MPFI||9.2:1||LU3||2
|-
|2002-2003|| {{convert|200|hp|abbr=on}} @ 4600 rpm||{{Auto lbft|260}} @ 2800 RPM||MPFI||9.2:1||LU3||1
|-
|2004-2009|| {{convert|195|hp|abbr=on}} @ 4600 rpm||{{Auto lbft|260}} @ 2800 RPM||MPFI||9.2:1||LU3||1,2
|-
|}


==External links==
'''Legend'''
* [http://www.gm.com/explore/technology/gmpowertrain/ GM Powertrain official website - information on current North American engines]


[[Category:Automobile-related lists|GM engines]]
* 1 - [[Chevrolet Silverado]] and [[GMC Sierra]] trucks
[[Category:General Motors]]
* 2 - [[Chevrolet Express]], [[GMC Savana]] Vans
[[Category:GM engines| ]]
* 3 - [[Chevrolet Astro]] vans, [[GMC Safari]] Vans
[[Category:Lists of engines|GM]]
* 4 - [[Chevrolet S-10 Blazer|Chevrolet Blazer]] and [[GMC S-15 Jimmy|GMC Jimmy]]
* 5 - [[Chevrolet S-10]] and [[GMC Sonoma]] (2WD)
* 6 - [[Chevrolet S-10]] and [[GMC Sonoma]] (4WD)
 
=== Turbocharged LB4 4.3L V6 ===
 
In 1991 GMC introduced the [[GMC Syclone]] limited edition truck that used a turbocharged 4.3L V6.  This engine used a Mitsubishi TD06-17C turbocharger, Garrett Water/Air intercooler and electronic multi-point fuel injection.  Although GM made these modifications to the engine, it was still referred to with the RPO '''LB4''' code.  The majority of the natuarally aspired LB4's long-block was shared with the turbo version.  However, the vehicles that used the 4.3L turbo engine also included RPO code '''ZR9'''.  Internal engine upgrades included nodular iron main bearing caps, graphite composite head gaskets with stainless steel flanges and [[hypereutectic piston]]s which lowered the engine compression to 8.35:1. <ref name="Syclone"> {{cite book | author = Harhaus, Volker, Michael Pocobello & Frank Tenkel | title = The Turbo/lntercooled Syclone Engine | publisher = Society of Automotive Engineers, Inc.| year = 1991 | id = ISSN 0148-7191}}</ref>  A unique intake manifold that used the 48 mm twin-bore throttle body from the 5.7L TPI Corvette engine was used on the engine's top end. <ref name="ENGINE TOUR">{{cite web|url=http://www.syty.org/old/engine.html|title=ENGINE TOUR|accessdate=2008-11-03}}</ref>
 
The Turbocharged 4.3L was last used in the [[GMC Typhoon]] in the 1993 model year.  The engine produced {{convert|280|hp|abbr=on}} @ 4400 rpm and {{convert|360|ft.lbf|N.m|abbr=on}} @ 3600 of torque. <ref name="SPECIFICATIONS">{{cite web|url=http://www.syty.org/old/brochure-spec.html|title=SPECIFICATIONS|accessdate=2008-11-03}}</ref>
 
== Notes ==
{{reflist}}
 
== References ==
 
* {{cite book | author = Chappell, Pat | title = The Standard Catalog of Chevrolet 1912-1990 | publisher = Kraus Publications | year = 1995 | id = ISBN 0-87341-141-2}}
* {{cite book | author = Lenzke, James T. | title = The Standard Catalog of Light Duty American Trucks | publisher = Kraus Publications | year = 2001 | id = ISBN 0-87341-933-2}}
* {{cite book | author = Harhaus, Volker, Michael Pocobello & Frank Tenkel | title = The Turbo/lntercooled Syclone Engine | publisher = Society of Automotive Engineers, Inc.| year = 1991 | id = ISSN 0148-7191}}
 
[[Category:GM engines|Chevrolet 90-Degree V6 engine]]
[[Category:Chevrolet engines|90-Degree V6 engine]]

Latest revision as of 15:28, 3 February 2009

Chevrolet 90° V6 engine
ManufacturerGeneral Motors
Type90° OHV V6
Production1978–
Bore3.50 in
3.736 in
4.00 in
Stroke3.48 in
Displacement200 cid (3.3 L)
229 cid (3.8 L)
262 cid (4.3 L)
Block alloyIron
Head alloyIron
ValvetrainOHV

The Chevrolet 90° V6 family of engines began in 1978 with the Chevrolet 200 cid (3.3 L) V6 as the base engine for the all new 1978 Chevrolet Malibu. This engine family is still produced today, as the 4.3 L V6 engine used in Chevrolet trucks and vans.

These engines have a 90° vee block with 12 valves activated by a pushrod valvetrain. All engines have cast iron blocks and cylinder heads. The engines are based on the Chevrolet Small-Block engine, and the V6 is formed by the removal of the #3 and #6 cylinders. The V6s share the same 4.4" bore spacing and 9.025" deck height as the V8 engines. Many parts are interchangeable between the 90° V6 and the small block V8 including valvetrain components, bearings, piston assemblies, lubrication and cooling system components, and external accessories. [1] The 90-degree V6 engine uses the same transmission bellhousing pattern as the Chevrolet small-block V8 engine. All the engines use a 1-6-5-4-3-2 firing order.[2] The engines in this family are longitudinal engines, and have only been used in rear-wheel drive cars and trucks.

3.3L (200 CID)

Introduced in 1978, the 200 cid replaced the larger 250 cid as the base engine for Chevrolet's new downsized intermediate line. The 200 cid used a unique 3.5" bore and a 3.48" stroke similar to the Chevrolet 305 cid and 350 cid V8 engines. These bore and stroke dimensions were later used by the 267 cid V8 Cheverolet engine. Also like the small block V8 engines, the 200 cid V6 used 2.45" main bearings and 2.10" rod bearing diameters.

Being a 90-degree V6, Chevrolet took steps to eliminate the rough running tendencies of the 200. The crankshaft has each of its connecting rod throws offset by 18 degrees for each pair of rods. This required the connecting rods to have 0.050" narrower ends as well as a thrust bearing to be installed between each pair of rods. However, the connecting rods were still the same 5.7" in length as most other small block Chevrolet V8 engines. This produced an engine that with a semi-even fire sequence of 132 deg./108 degrees. [2]

The 200 cid V6 was only produced for 1978 and 1979. It was only ever available with a 2-barrel carburetor. In 1978, the 200 cid used the Rochester 2GC carburetor and in 1979 it used a Rochester Dualjet carburetor. The smaller carburetor caused a slight decrease in power.

Year Horsepower Torque Bore and Stroke Carburetor Compression Ratio
1978 95 hp (71 kW) @ 3800 rpm 160 lb·ft (217 N·m) @2000 rpm 3.50" x 3.48" 2-BBL 2GC 8.20:1
1979 94 hp (70 kW) @ 4000 rpm 154 lb·ft (209 N·m) @2000 rpm 3.50" x 3.48" 2-BBL M2ME 8.20:1

3.8L (229 CID)

The 229 cid engine was first introduced for the 1980 model year and was produced until 1984. This engine replaced the 250 cid in fullsize Chevrolets and Camaros as the new base V6. Additionally, the intermediate Chevrolet Malibu and Monte Carlo also used the 229 cid as a replacement for both the 200 cid V6, and the 231 cid Buick V6. Both the 231 cid Buick V6 and the 229 cid Chevrolet V6 are 90 degree V6 engines, and both are often referred to as the 3.8L V6. These engines should not be confused as being the same, and are completely unique engine designs.

The 229 cid has a 3.736" bore and a 3.48" stoke, identical to the Chevrolet 305 cid V8 engine. The 229 cid used the same 2.45" main bearing and 2.10" rod bearing diameters as the 200 cid V6 engine. Also like the 200 cid V6, the 229 cid used the same crankshaft with the 18 degree offset throws and the same 5.7" connecting rods with 0.050" narrowed ends. It came equipped with 1.84" intake valves and 1.50" exhaust valves. The 229 cid V6 was only equipped with a 2-barrel carburetor. For 1980 the 229 cid used a mechanical Dualjet. From 1981 - 1984 the electronic Dualjet was used along with the GM's CCC (Computer Command Control) system. The 229 cid was rated between 110 and 115 hp (86 kW).

Year Horsepower Torque Bore and Stroke Carburetor Compression Ratio
1980 115 hp (86 kW) @ 4000 rpm 175 lb·ft (237 N·m) @ 2000 RPM 3.736" x 3.48" 2-BBL M2ME 8.60:1
1981-82 110 hp (82 kW) @ 4200 rpm 170 lb·ft (230 N·m) @ 2000 RPM 3.736" x 3.48" 2-BBL E2ME 8.60:1
1983-84 110 hp (82 kW) @ 4000 rpm 190 lb·ft (258 N·m) @ 1600 RPM 3.736" x 3.48" 2-BBL E2ME 8.60:1

4.3L (262 CID)

The 4.3L (262 cid) V6 is the last and most successful engine in the Chevrolet 90-degree V6 engine family. This engine was introduced in 1985 as a replacement for the 229 cid V6 in the fullsize Chevrolet and the Chevrolet El Camino. It also replaced the 250 cid in the Chevrolet fullsize trucks and fullsize vans as the new base six cylinder engine.

The 4.3L V6 has a 4.00" bore and a 3.48" stroke, identical to the 350 cid Chevrolet V8 engine. To create a true even fire engine, Chevrolet produced a crankshaft with 30 degree offsets between each rod pin. Consequentially, rod journals were increased to a larger 2.25". The connecting rods used on the 4.3L are therefore unique to this engine, being 5.7" in length, but having the larger 2.25" journals. The 4.3L also used larger valves than the 229 cid V6, with a 1.94" intake valve and a 1.50" exhaust valve. [2]

In 1986 and 1987, the 4.3L engine saw engine design upgrades similar to the Chevrolet small block V8. In 1986, the rear main crankshaft oil seal was changed from a two piece to a once piece seal. Some 1985 model year vehicles would have a 1986 engine due to service replacement - cylinder blocks were shipped with oil pans. [3]1987 saw new center bolt valve covers and hydraulic roller lifters. [4]

For the 1992 model year, the 4.3L had its block design modified to allow a balance shaft to be installed. [5] Even though the 4.3L is an even fire V6, the 90 degree block layout is not ideal for smoothness. The balance shaft on the 4.3L is installed above the top timing gear, and runs through the top of the lifter valley. It is gear driven off the timing chain, and therefore a new timing chain cover was designed for these balanced 4.3L V6s.

LB1 and LB4

In 1985, the 4.3L was either equipped with throttle-body fuel injection, RPO LB4 or a Rochester Quadrajet 4-Barrel carburetor, RPO LB1. The Chevrolet fullsize sedans and the Chevrolet El Camino used the LB4 rated at 130 hp (97 kW). Pick-ups and Vans used the LB1 version rated at 155 hp (116 kW). The LB1 used in trucks and vans was referred to as Vortec in Chevrolet literature, and this name continued to be used with all truck and van 4.3L V6s until present day.

In 1986, the 4.3L engine used in the Chevrolet Caprice and El Camino saw an incease in power to 140 hp (100 kW). This engine remained unchanged until 1990 when it was last used in taxi and Police Chevrolet Caprices. In 1986 the Chevrolet Astro and GMC Safari vans used the fuel injected LB4 instead of the LB1. In 1987, the Chevrolet full size pick-ups and fullsize vans were upgraded to use the LB4 throttle-body injection version of the 4.3L. From 1987 onwards LB4s output was 160 hp (120 kW) for pickups, while fullsize vans were rated at 150 hp (110 kW). In 1988 the S-series trucks and S-Blazer and Jimmys had the LB4 4.3L as an available option (the accessory drive was upgraded to a serpentine belt drive). The LB4 continued until 1996 with minor variations in power, but without any major change.

Year Horsepower Torque Fuel System Compression Ratio RPO Applications
1985-86 155 hp (116 kW) @ 4000 rpm 230 lb·ft (312 N·m) @ 2400 RPM 4-BBL 9.3:1 LB1 1,2,3
1985 130 hp (97 kW) @ 3600 rpm 210 lb·ft (285 N·m) @ 2000 RPM TBI 9.3:1 LB4 4,5
1986-90 140 hp (100 kW) @ 4000 rpm 225 lb·ft (305 N·m) @ 2000 RPM TBI 9.3:1 LB4 4,5
1987-88 145 hp (108 kW) @ 4200 rpm 225 lb·ft (305 N·m) @ 2000 RPM TBI 9.3:1 LB4 5
1986 160 hp (120 kW) @ 4000 rpm 235 lb·ft (319 N·m) @ 2400 RPM TBI 9.3:1 LB4 3
1987-92 150 hp (110 kW) @ 4000 rpm 230 lb·ft (312 N·m) @ 2400 RPM TBI 9.3:1 LB4 2
1987-92 160 hp (120 kW) @ 4000 rpm 235 lb·ft (319 N·m) @ 2400 RPM TBI 9.1:1 LB4 1,3,6,7
1993-95 155 hp (116 kW) @ 4000 rpm 230 lb·ft (312 N·m) @ 2000 RPM TBI 9.1:1 LB4 2
1993-95 165 hp (123 kW) @ 4000 rpm 235 lb·ft (319 N·m) @ 2000 RPM TBI 9.1:1 LB4 1,3,6,7

Legend

LU2

For the 1990-1991 model years a high ouotput 4.3L V6 was an available option for the Chevrolet Astro and GMC Safari vans. The LU2 used unique hypereutectic, strutless pistons and a more aggressive camshaft. Like the LB4, the LU2 used throttle-body fuel injection, but was rated at 170 hp (130 kW) and 260 ft·lbf (350 N·m) of torque. This engine was replaced in 1992 with the L35.

Year Horsepower Torque Fuel System Compression Ratio RPO Applications
1990-92 170 hp (130 kW) @ 4600 rpm 260 lb·ft (353 N·m) @ 3400 RPM TBI 9.1:1 LU2 1

Legend

  • 1 - Chevrolet Astro vans, GMC Safari Vans - optional on extended length models

L35 CPI

1992 introduced a new version of the 4.3L, the L35. This version of the 4.3L was equipped with CPI (Central Port Fuel Injection). This system had one centrally located fuel injector distribute fuel to six hoses each with a poppet valve to each of the intake ports. This system allowed for a multi-point injection, using one injector. The fuel injection was a batch fire system and used a two piece cast aluminum dual-plenum manifold. This engine was available in S-10 Blazers and S15-Jimmys and Astro and Safari vans only. The L35 was rated at 200 hp (150 kW) and 260 ft·lbf (350 N·m) of torque.

Year Horsepower Torque Fuel System Compression Ratio RPO Applications
1992-94 200 hp (150 kW) @ 4500 rpm 260 lb·ft (353 N·m) @ 3600 RPM CPI 9.1:1 L35 1,2,3
1995 190 hp (140 kW) @ 4500 rpm 260 lb·ft (353 N·m) @ 3400 RPM CPI 9.1:1 L35 1
1995 191 hp (142 kW) @ 4500 rpm 260 lb·ft (353 N·m) @ 3400 RPM CPI 9.1:1 L35 3
1995 195 hp (145 kW) @ 4500 rpm 260 lb·ft (353 N·m) @ 3400 RPM CPI 9.1:1 L35 2

Legend

L35 and LF6 SCPI

Major design changes to the 4.3L V6 for the 1996 model year. Like other small block Chevrolet V8s, the 4.3L engine received redesigned heads which had improved airflow and combustion efficiency. These heads are referred to as Vortec heads. Furthermore the 4.3L was upgraded to receive sequential port fuel injection. The fuel system uses six centrally mounted injectors firing into six nylon hoses with poppet valves leading to each intake port. This system was call SCPI (Sequential Central Port Injection). This 4.3L used a two piece manifold, with the upper half manufactured from a composite plastic and the lower half manufactured from cast aluminum.

This engine came in two versions, the LF6 rated at 175 hp (130 kW) - 180 hp (130 kW), and the L35 rated at 180 - 200 hp (150 kW). Only the S-series pick-ups used the LF6, while the fullsize trucks, vans and Blazer and Jimmy used the L35 version. The L35 was optional on the S-Series trucks.

Year Horsepower Torque Fuel System Compression Ratio RPO Applications
1996 170 hp (130 kW) @ 4400 rpm 235 lb·ft (319 N·m) @ 2800 RPM SCPI 9.2:1 LF6 5
1997-2002 175 hp (130 kW) @ 4400 rpm 240 lb·ft (325 N·m) @ 2800 RPM SCPI 9.2:1 LF6 5
1996-2002 180 hp (130 kW) @ 4400 rpm 240 lb·ft (325 N·m) @ 2800 RPM SCPI 9.2:1 LF6 6
1996-2002 180 hp (130 kW) @ 4400 rpm 245 lb·ft (332 N·m) @ 2800 RPM SCPI 9.2:1 L35 5
1996-2002 190 hp (140 kW) @ 4400 rpm 250 lb·ft (339 N·m) @ 2800 RPM SCPI 9.2:1 L35 3,4,6
1996-2002 200 hp (150 kW) @ 4400 rpm 250 lb·ft (339 N·m) @ 2800 RPM SCPI 9.2:1 L35 2
1996-1998 200 hp (150 kW) @ 4400 rpm 255 lb·ft (346 N·m) @ 2800 RPM SCPI 9.2:1 L35 1
1999-2002 200 hp (150 kW) @ 4600 rpm 260 lb·ft (353 N·m) @ 2800 RPM SCPI 9.2:1 L35 7

Legend

LU3 and LG3 MPFI

2002 saw major changes to the 4.3L fuel injection system. For 2002 California emission Chevrolet Astros, GMC Safaris, Chevrolet Silverados and GMC Sierras all came equipped with the updated LU3 4.3L. 2003 saw the L35 discontinued and the LU3 replacing it in all other applications. A new variation was also introduced in 2003, the LG3. For 2004 to 2009 the LU3 has been the only 4.3L produced.

The biggest change to the LU3 and LG3 was the fuel injection system. These engines used a multipoint fuel injection system, with six Multec II fuel injectors mounted at each intake port on the manifold. The composite upper intake manifold and cast aluminum lower intake from the L35 engine is also used on the LU3. The LG3 uses a cast aluminum upper intake and a cast iron lower intake. [6]

The LU3 also received a quiet cam to help reduce vibration at both idle and high engine speeds. This camshaft used the same lift and duration as the older design, but the cam was reprofiled to keep the valve lifters in full contact with the cam lobes as the cam ramps down. [6]

The LG3 was used in Chevrolet and GMC S-series pickups and was only produced for 2003. The LU3 was used in the Chevrolet and GMC fullsize trucks and vans, the Chevrolet Astro and GMC Safari vans and the Chevrolet S-10 Blazer and GMC S-15 Jimmy. The LG3 was rated at 180 hp (130 kW) and 245 ft·lbf (332 N·m) of torque. The LU3 was rated at 190-200 hp and 250-260 ft·lbf of torque.

Year Horsepower Torque Fuel System Compression Ratio RPO Applications
2003 180 hp (130 kW) @ 4400 rpm 245 lb·ft (332 N·m) @ 2800 RPM MPFI 9.2:1 LG3 5
2003-05 190 hp (140 kW) @ 4400 rpm 250 lb·ft (339 N·m) @ 2800 RPM MPFI 9.2:1 LU3 3,4,6
2002-2003 200 hp (150 kW) @ 4400 rpm 250 lb·ft (339 N·m) @ 2800 RPM MPFI 9.2:1 LU3 2
2002-2003 200 hp (150 kW) @ 4600 rpm 260 lb·ft (353 N·m) @ 2800 RPM MPFI 9.2:1 LU3 1
2004-2009 195 hp (145 kW) @ 4600 rpm 260 lb·ft (353 N·m) @ 2800 RPM MPFI 9.2:1 LU3 1,2

Legend

Turbocharged LB4 4.3L V6

In 1991 GMC introduced the GMC Syclone limited edition truck that used a turbocharged 4.3L V6. This engine used a Mitsubishi TD06-17C turbocharger, Garrett Water/Air intercooler and electronic multi-point fuel injection. Although GM made these modifications to the engine, it was still referred to with the RPO LB4 code. The majority of the natuarally aspired LB4's long-block was shared with the turbo version. However, the vehicles that used the 4.3L turbo engine also included RPO code ZR9. Internal engine upgrades included nodular iron main bearing caps, graphite composite head gaskets with stainless steel flanges and hypereutectic pistons which lowered the engine compression to 8.35:1. [7] A unique intake manifold that used the 48 mm twin-bore throttle body from the 5.7L TPI Corvette engine was used on the engine's top end. [8]

The Turbocharged 4.3L was last used in the GMC Typhoon in the 1993 model year. The engine produced 280 hp (210 kW) @ 4400 rpm and 360 ft·lbf (490 N·m) @ 3600 of torque. [9]

Notes

  1. ↑ "Chevy 90-Degree V6". http://www.gmpartsdirect.com/performance_parts/store/catalog/Category.jhtmlCATID=273.html. Retrieved on 2008-10-30. 
  2. ↑ 2.0 2.1 2.2 "Chevy Production 90 degree - V6 Engine". http://engine.firebirdv6.com/V690.html. Retrieved on 2008-11-04.  Cite error: Invalid <ref> tag; name "Chevy Production 90 degree - V6 Engine" defined multiple times with different content Cite error: Invalid <ref> tag; name "Chevy Production 90 degree - V6 Engine" defined multiple times with different content
  3. ↑ "Rebuilding the Chevrolet 262". http://www.s10forum.com/Rebuilding_the_Chevy_262.htm. Retrieved on 2008-12-9. 
  4. ↑ "Chevy 4.3L 262ci V-6 - The 3/4 350". http://www.hotrod.com/techarticles/engine/113_0208_chevy_43l_262ci_v6_engine_build/index.html. Retrieved on 2008-11-04. 
  5. ↑ "Rebuilding the new Chevy 262". http://www.enginebuildermag.com/Article/2427/rebuilding_the_new_chevy_262.aspx. Retrieved on 2008-12-26. 
  6. ↑ 6.0 6.1 "Vortec 4300 4.3L V6 (LG3/LU3) Truck Engines". http://www.media.gm.com/division/powertrain/products/engine/truckengines/2003/truck_benefits/l35_lu3_lg3.doc. Retrieved on 2008-11-04. 
  7. ↑ Harhaus, Volker, Michael Pocobello & Frank Tenkel (1991). The Turbo/lntercooled Syclone Engine. Society of Automotive Engineers, Inc.. ISSN 0148-7191. 
  8. ↑ "ENGINE TOUR". http://www.syty.org/old/engine.html. Retrieved on 2008-11-03. 
  9. ↑ "SPECIFICATIONS". http://www.syty.org/old/brochure-spec.html. Retrieved on 2008-11-03. 

References

  • Chappell, Pat (1995). The Standard Catalog of Chevrolet 1912-1990. Kraus Publications. ISBN 0-87341-141-2. 
  • Lenzke, James T. (2001). The Standard Catalog of Light Duty American Trucks. Kraus Publications. ISBN 0-87341-933-2. 
  • Harhaus, Volker, Michael Pocobello & Frank Tenkel (1991). The Turbo/lntercooled Syclone Engine. Society of Automotive Engineers, Inc.. ISSN 0148-7191. 
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