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68-592: The Commodore Series 12 and Series 14 were the junior models to the Commodore Custom Series 15 and Series 17. The junior models debuted in Hudson's 1941 model line. Commodore Series 12 featured a I6 engine and the Series 14 models came with a I8 , with all built on a 121-inch (3,073 mm) wheelbase, while Commodore Customs utilized on the 121 in (3,073 mm) wheelbase for Series 15 coupes and

136-542: A fastback design, while convertibles and coupes were notchbacks . A character line ran from the front to back further lowering the car even more visually, so "the new Hudson looked like a dream car straight from the auto show." In 1948, Commodores came in one series and were available in either I6 or optional I8 engines. Interiors were upholstered in broadcloth on sedans, and leather on convertibles. Again, Hudson continued to provide numerous standard features that other manufacturers classified as upcharge options. Not only were

204-457: A triple in power delivery. As such, it also requires crank throws at 60° – . Such designs appear to have been limited to diesel engines such as the Detroit 71 series , marine engines, and outboard motors. Some of the 120 possible crankshaft configurations have useful properties. Still, all of them have a rocking imbalance that may or may not require a balance shaft, depending on

272-626: A 1.8 L flathead petrol engine used by the Opel 8/40 PS . The displacement of this engine was expanded as it was used in later models such as the Opel Kapitän and Opel Admiral , with later versions switching to an overhead valve (pushrod) design. In 1968, the straight-six versions of the Opel CIH engine were introduced, initially using a single overhead camshaft (SOHC) with some later versions using double overhead camshafts (DOHC). Production of

340-459: A 128 in (3,251 mm) version for Series 17 sedans. The Commodore was powered by Hudson's 202 cu in (3.3 L) I6 producing 102 bhp (76 kW), or by Hudson's 254.4 cu in (4.2 L) I8 that produced 128 bhp (95 kW). Prices listed for the Series 12 coupe started at US$ 1,028 ($ 21,295 in 2023 dollars ) to the top level Custom Series 17 Sedan at US$ 1,537 ($ 31,839 in 2023 dollars ). The Commodore series

408-534: A Hudson dealership in Massachusetts, and was planning to build up to a dozen Sir Vivals per year, but only the prototype was completed and in early-1970s, it went back to Bellingham Motors for storage. With the closing of Bellingham Motors, in 2022 it was sold to Lane Motor Museum which plans to restore it. For the 1949 model year, the Commodore line was enlarged to include more luxurious Custom models. As

476-531: A V6 engine replaced it. The Nissan TB overhead valve engine was introduced in 1987 and produced alongside the other straight-six engines. The six-cylinder versions of the Prince G engine were introduced in 1963 and remained in production until 1969, three years after Prince's merger with Nissan. The 1969–1973 Nissan S20 dual overhead camshaft engine (used in the Nissan Fairlady and first generation of

544-417: A hinged two-section car to minimize impact of collisions. Among its many features are a centrally-positioned, raised 36 in (91 cm) turret-shaped driver compartment providing panoramic visibility, as well as safety equipment that would later become standard on production vehicles such as rubber bumpers, seat belts, and side marker lights. Jerome had purchased the two donor Hudsons from Bellingham Motors,

612-533: A lower-cost version of the Oakland six, powered by the Pontiac Split-Head Six flathead engine, which used two cylinder heads. This engine was replaced by the 1941–1954 Pontiac flathead six . The unrelated Pontiac OHV 6 overhead valve engine was produced in 1964–1965, based on a Chevrolet design. Pontiac's final straight-six engine was the 1966–1969 Pontiac OHC 6 overhead camshaft engine, which

680-505: A marketing promotion, Hudson had plastic specialists use scaled-down blueprints to develop transparent models of the Commodore Eight sedan to demonstrate and promote the design and construction of the cars. The most noticeable change to the 1950 model year was the restyled grille featuring a design that superimposed Hudson's signature triangle logo on four horizontal bars. This would become the "Hudson look." The 1950 models included

748-399: A new split back window and redesigned interiors. A new Custom Commodore convertible model debuted in mid-April 1950. In 1951, Hudson introduced a new I6 engine and offered General Motors' Hydra-Matic as an optional transmission. The grille was redesigned from a rather rectangular shape to an oval shape, a design that would carry through to 1953. The grille would be redesigned again in 1954,

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816-455: A single overhead camshaft engine in 1979 and upgraded to dual overhead camshafts before production ended in 2008 (with the 1G-FE being the final variant). Nissan's first straight-six engine was the 1950–1952 Nissan NAK flathead petrol engine, which continued in various forms until production of the Nissan P engine ended in 2003. The 1963-1965 Nissan K overhead valve petrol engine was used in

884-499: A station wagon, a pickup, and a town car. Butler's illustrations were an inspiration to build a Commodore station wagon. A 1948 Hudson Commodore Eight four-door sedan served a donor with another car's roof added for the station wagon's rear section. The woodie was hand-made of ash framing with mahogany veneer panels. The car is a modern realization of an unbuilt postwar design. Actor Steve McQueen owned four Hudsons that he drove around Los Angeles. His 1950 Hudson Commodore Six Brougham

952-597: A straight six version of the Chrysler flathead petrol engine. This was replaced by the 1959–2000 Chrysler Slant-6 overhead valve straight-six petrol engine, which was so named due to the 30-degree angle used to reduce the height of the engine (with the trade-off of a wider engine). The Slant-6 was released in the Dodge Dart economy car and used in many models until a V6 engine replaced it after 30 years. The Chevrolet Stovebolt overhead valve straight-six petrol engine

1020-496: A straight-six engine compare favorably with the more common straight-four engines and V6 engines , which experience significant secondary dynamic imbalance, resulting in engine vibration. As engine reciprocating forces increase with the cube of piston bore, the straight-six is a preferred configuration for large truck engines. An even-firing six-cylinder two-stroke engine requires ignitions at 60° intervals, or else it would run with simultaneous ignitions and be no smoother than

1088-415: A straight-six was the 1961–1969 Alfa Romeo 2600 executive car before the company switched to V6 engines. Mercedes-Benz's history of straight-six engines began with the 1913 Mercedes D.I aircraft engine. The first automotive straight-six engine was the 1924–1929 Daimler M836 3.9 L petrol engine. Following World War 2, Mercedes resumed production of straight-six engines with the 1951 introduction of

1156-402: Is due to the front and rear trio of cylinders moving in pairs (albeit 360° out of phase), thus canceling out the rocking motion present in a straight-three engine . The secondary balance is due to the crank throws being arranged in three planes offset at 120°, resulting in the non-sinusoidal forces summing to zero for all free forces until the sixth order. The engine balance characteristics of

1224-464: Is the German brand BMW , which has always used a straight-six layout for its six-cylinder engines. Since 2017, the trend of switching to V6 engines has reversed due to the ability to create a modular engine family of straight engines sharing many components. Examples include the 2017–present Mercedes-Benz M256 engine , the 2019–present Jaguar Land Rover Ingenium engines (AJ300 and AJ300D versions),

1292-570: The BMW M337 (produced until 1958). Production of straight-six engines resumed in 1968 with the BMW M30 single overhead camshaft engine, built for 27 years and used in various models. The 1978–1989 BMW M88 engine was a double overhead camshaft design that was introduced in the BMW M1 mid-engine sport car. BMW's introduction of turbocharged straight-six engines (aside from the low-volume variants of

1360-508: The Duramax Straight-6 turbocharged diesel engine has been available in several General Motors SUV and light truck models since 2020. On March 25, 2022, Stellantis announced their new turbocharged straight-six engine, called Hurricane. Two outputs are available, a standard 400 or 500 hp (298 or 373 kW; 406 or 507 PS) high performance rated at 450 or 475 pound force-feet (610 or 644 N⋅m) of torque. The turbos on

1428-534: The Ford 240 I6 from 1965 through 1972. The Ford 300 cu in (4.9 L) version of the straight-six engine was built from 1965 until 1996, with notable uses in trucks, SUVs, and vans. However, Ford straight-sixes were replaced by V6 engines in passenger cars during the mid-1970s. In 1908, the Oldsmobile Model Z was powered by a flathead straight-six petrol engine, which was produced until 1912 (in

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1496-674: The Ford Falcon large sedan was introduced with a locally-built version of the American Ford Straight-6 overhead valve engine. In 1998, these engines were upgraded to a single overhead camshaft design. This was followed in 2002 by the Ford Barra dual overhead camshaft engine in 2002, which was produced in both naturally aspirated and turbocharged versions. The Ford Barra engine remained in use until Ford Australia ceased local production in 2016. The Chrysler Valiant

1564-686: The Mercedes-Benz M180 overhead camshaft engine. In 1985, the Mercedes-Benz OM603 3.0 L diesel straight-six engine was introduced. In 1996, the company replaced its petrol straight-sixes with a series of V6 engines, although it continued producing diesel straight-six engines. Production of petrol straight-six engines resumed in 2017 with the introduction of the Mercedes-Benz M256 turbocharged DOHC engine. Opel began production of straight-six engines in 1927 with

1632-659: The Nissan Cedric Special 50 luxury car. Using a similar design, the Nissan H30 engine was used in several luxury cars from 1965 through 1989. In 1966, Nissan began production of the six-cylinder versions of the Nissan L single overhead camshaft engine, which was produced until 2009. The 1985–2004 Nissan RB engine , used in the Nissan Skyline and several other cars, was produced in single overhead camshaft and dual overhead camshaft configurations until

1700-721: The Nissan Skyline GT-R ) was based on the Prince G engine. Mitsubishi produced six-cylinder versions of the Mitsubishi KE engine from 1963 to 1970, as well as the rare six-cylinder versions of the Mitsubishi 6G34 version of the single overhead camshaft "Saturn" engine from 1970 to 1976. The 2000–2006 Daewoo Magnus (also called the Chevrolet Evanda, Chevrolet Epica, Holden Epica, or Suzuki Verona)

1768-531: The Oldsmobile Limited luxury car) in displacements of 453 cu in (7.4 L), 505 cu in (8.3 L) and 706 cu in (11.6 L). Oldsmobile's next straight-six engine was introduced in the 1913 Oldsmobile Six luxury car, initially with a displacement of 380 cu in (6.2 L), followed by a displacement of 177 cu in (2.9 L) for the 1917-1921 Oldsmobile Model 37 luxury car. The later generations of

1836-536: The Oldsmobile Straight-6 also used a flathead design from its introduction in the 1923 Oldsmobile Model 30 luxury car until it was replaced in 1950 by Oldsmobile's V8 engine. The 1913–1929 Oakland Six luxury car was powered by a flathead petrol engine produced in displacements of 177 cu in (2.9 L) and 334 cu in (5.5 L). In 1926, the Pontiac Six was introduced as

1904-477: The 0.7 L (43 cu in) Benelli 750 Sei motorcycle engine to the 6.7 L (409 cu in) Cummins B Series engine pickup truck engine have also been produced. Due to its well-balanced configuration, the straight-six can be scaled up to substantial sizes for heavy trucks, locomotives, industrial and marine use. If an appropriate firing order is used, a straight-six engine has perfect primary and secondary engine balance . The primary balance

1972-675: The 1938 Jaguar 3½ Litre sports saloon/coupe and the 1948 Jaguar Mark V luxury car. The 1927 Rover Two-litre luxury car introduced the company's IOE straight-six petrol engine. This engine was used in various Rover models until the Rover P5 was discontinued in 1973, and in various Land Rover models from the 1961 Land Rover Series IIA until 1980 Land Rover Series III . The 1928 Austin 20/6 luxury car introduced Austin's flathead straight-six petrol engine. The 1938-1939 Austin Twenty-Eight used an enlarged version of this engine. This

2040-463: The 1942 models. There were minor cosmetic changes from the pre-war versions with one exception, the car's grille now had a concave center section. Hudson automobiles were more fully equipped than competitive makes, and all Hudson models received door armrests, twin air-horns, ashtrays, windshield wipers, stop lights, locking glove box, sealed beam headlights, and deep pile carpeting. Commodore and Commodore Customs added foam rubber seat cushions (Hudson

2108-525: The 1948 models "truly significant new designs of the early postwar years. The “Step-Down” Hudson was low and sleek, which many consumers really enjoyed." Total Commodore production was 62,474 of which 35,315 were I8 units. In response to the increasing number of deaths on highways in the United States after World War II, an innovative concept car was designed and built for safety rather than for style or speed. Using two 1948 Hudsons, Walter Jerome, built

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2176-459: The 1998–2006 Volvo S80 ) used the uncommon design of a transversely-mounted straight-six engine. Production of Volvo straight-six engines ceased in 2015. BMW's first product was the 1917 BMW IIIa straight-six aircraft engine. The company began production of automotive straight-six engines in 1933 with the BMW M78 petrol engine, a 1.2 L overhead valve design that evolved over the years into

2244-569: The 2021–present Stellantis Hurricane engine and the 2022–present Mazda Skyactiv-X and Skyactiv-D engines. Alfa Romeo's first production straight-six engine - 6.3 L flathead petrol engine - was introduced in 1921 in the Alfa Romeo G1 luxury car. An overhead valve design was introduced in the 1922 Alfa Romeo RL sports car, and an overhead camshaft design was used in the 1927 Alfa Romeo 6C sports car and various racing cars from 1927 until 1954. The last Alfa Romeo model using

2312-739: The Hurricane Standard Output deliver a peak boost of 22 psi, while the Hurricane High Output turbos deliver 26 psi of peak boost. The 3.0 L Hurricane is produced at Stellantis’ Saltillo Engine Plant in Mexico. Toyota's first straight-six engine was the Toyota Type A , produced from 1935 through 1947. The Type A was an overhead-valve petrol engine based on the Chevrolet Stovebolt engine. This

2380-505: The M30 engine in the 1980s) was in 2006 BMW N54 and the production of naturally aspirated engines ceased in 2015. As of 2022 , the BMW B58 turbocharged straight-six engine remains in production, along with its higher performance BMW S58 variants. Rolls-Royce's first straight-six engine was a 6.0 L IOE petrol engine, which was used in the 1905 Rolls-Royce 30 hp luxury car. This car

2448-667: The Opel CIH engine continued until 1993, when a V6 engine replaced it. Volvo began production of straight-six engines with the 1929–1958 Penta DB flathead petrol engines. The company resumed production in 1969 with the Volvo B30 overhead valve petrol engine, followed by the straight-six versions of the Volvo Modular Engine introduced in 1995 and then the Volvo SI6 engine introduced in 2006. Several models (such as

2516-525: The application. The six pistons with six unique phases cannot be "paired" as in the four-stroke case. The Detroit engines used a configuration that, once the primary rocking couple was balanced out, was also perfectly balanced at all other rocking couples until the 6th order. Mercury came to use a configuration that canceled only the primary rocking couple and was run without a balancer. The reciprocating masses of all configurations are still imbalanced at only 6th-order and up in their plane of motion. Still,

2584-465: The balance of kinetic energy exchange between pistons has improved to a residual 6th-order-and-up inertial torque oscillation compared with the four-stroke design being imbalanced at 3rd-order and up. Crankshafts for straight-six engines usually have either four main bearings (i.e., a bearing in between each pair of crankpins and one at each end) or seven main bearings (i.e., a bearing between every crankpin): The first production straight-six engine

2652-681: The cars received a facelift. This included concealed running boards, modestly enlarged front grilles, and external trim arrangements. Hudson offered an optional "Drive-Master" vacuum-assisted clutch with a servo-operated transmission with three modes: "automatic" shifting and clutching, automated clutching only, or fully manual. The firm promoted its economy over luxury during the shortened model year that ended in January 1942, as U.S. war production accelerated. Hudson began postwar automobile production on August 30, 1945. Body styles were trimmed to Sedan, Club Coupe, and Convertible. The designs were based on

2720-400: The first female designer to be employed by a car manufacturer. The marketing tagline for the innovative Hudsons was "Now You're Face to Face with Tomorrow." The cars had a light and strong semi-unit body with a perimeter frame . Because of the encircling frame, passengers stepped down into the vehicles. Hudson's step-down design made the body lower than contemporary cars. It offered passengers

2788-528: The last year for the famous aerodynamic Hudson body style which was used from 1948 until 1954. In its final year in 1952, the Commodore was split into the Six Series and Eight Series. The exterior received another trim change, but by the end of 1953, the Step-Down styling was beginning to look outdated. Hudson lacked the resources to keep adding new and exciting changes to keep up with the competition from

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2856-552: The mid-20th century, the straight-six layout was the most common design for engines with six cylinders. However, V6 engines became more common in the 1970s. By the 2000s, V6 engines replaced most straight-six engines. In terms of packaging, straight-six engines are almost always narrower than a V6 engine or V8 engine , but longer than straight-four engines , V6s, and most V8s. Straight-six engines are typically produced in displacements ranging from 2 to 4 L (122 to 244 cu in), however engines ranging in size from

2924-637: The other automakers, whose annual redesigns added tailfins and more chrome trim that consumers wanted. Instead of redesigning the aging "set-down" models, company President A. E. Barit pushed ahead with the firm's plan for the Jet compact . Beginning in 1953, Hudson would field only the Hudson Hornet and Hudson Wasp line, as well as introduce the entirely new Hudson Jet compact car line. Following Hudson's merger with Nash to form American Motors Corporation (AMC) in 1954, Hudson's automobile production

2992-485: The previous year's 8,193. Hudson developed a new and radical car design. Production of the 1948 Hudsons began on 12 October 1947. Introduced on 7 December 1947, the Hudson Commodore was one of the first new-design postwar cars made. The 1948 model year inaugurated Hudson's trademarked "Monobuilt" construction or "step-down" automobile. The new cars were designed by Frank Spring and in part by Betty Thatcher ,

3060-473: The protection of being surrounded by the car's chassis with a lower center of gravity. In addition to the safety of being surrounded by the car's chassis, the step-down also allowed Hudson to achieve weight savings through the unibody construction, making for a well-performing automobile. The "monobuilt" or "step-down design also required less steel for its production. The cars featured slab-sided bodies with fully integrated fenders. The Brougham and sedans were of

3128-527: The top-level Custom and the Super. However, during the show car season, AMC prepared a one-off 1957 Hudson Commodore show car identical to the production Hornet, featuring gold exterior trim and unique upholstery. In 1946, Hudson hired an experienced Army illustrator for instruction manuals and training materials. Don Butler assisted with the final design drawings for the upcoming 1948 Hudsons. However, he also sketched unofficial proposals for Hudson that included

3196-411: Was Hudson's largest model range in its debut year, consisting of sedans , coupes , and convertibles . Hudson used a forward hinged hood that opened from the rear by the windshield with the front end of the hood sliding downward over the grille. Elements of the interior and exterior were styled by Betty Thatcher , "the first woman designer to be employed by a car manufacturer". For the 1942 model year,

3264-469: Was followed by an IOE version in 1916. The 1951 Hudson Hornet introduced a 308 cu in (5.0 L) flathead straight-six engine. These engines dominated dirt track and NASCAR racing at the time. Production of the Hudson I6 continued after the 1954 merger forming American Motors Corporation and was eventually replaced by a new Rambler V8 after 1956. In 1924, Chrysler began production of

3332-589: Was followed by the AJ6 and AJ16 engines, produced from 1984 to 1996, before being replaced by a Ford-derived V6 engine. The 1948–1959 Lagonda straight-6 dual overhead camshaft petrol engine was used in various Aston Martin and Lagonda cars. This engine's successor was the Tadek Marek-designed straight-six used in the DB4 (1958), DB5 (1963), DB6 (1965) and DBS (1967). The Ford Zephyr 6 overhead valve engine

3400-412: Was followed by the 1962–1988 Chevrolet Turbo-Thrift engine (also using an overhead valve design), which was replaced by various General Motors V6 engines. The 1952 through 2006 AMC Straight-6 petrol engine initially used a flathead design before being upgraded to an overhead valve design in 1956. A new I6 design with a short stroke and seven main bearing crankshaft was introduced in 1964. The engine

3468-423: Was followed by the first generation Toyota F overhead valve engine, which was produced from 1949 to 1975, which in turn was followed by the 2F version from 1975 to 1988 and the fuel-injected 3F / 3FE version from 1988 to 1992. This was replaced by the dual overhead camshaft Toyota FZ engine , produced from 1993 until 2008. Produced alongside these engines was the single overhead camshaft Toyota M engine , which

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3536-531: Was introduced in 1929 as a replacement for the brand's straight-four engines and was produced in displacements of 181 cu in (3.0 L), 194 cu in (3.2 L) and 207 cu in (3.4 L). The second generation of this engine family - often referred to as the Blue Flame engine - was produced from 1937 to 1962 in displacements of 216 cu in (3.5 L), 235 cu in (3.9 L) and 261 cu in (4.3 L). This

3604-407: Was introduced in 1965 and produced over seven generations until 1993 (with the 7M-GTE being the final version of the M engine). The M engine was replaced by the dual overhead camshaft Toyota JZ engine , which was produced from 1990 to 2007 and is arguably known as Toyota's best straight-six engine. Toyota's third line of straight-six engines was the 2.0 L Toyota G engine , which was released as

3672-670: Was introduced in the Willys Jeep Station Wagon . At the time of its introduction, the Tornado engine had the lowest specific fuel consumption of an American gasoline (petrol) engine. The Tornado engine was replaced by the AMC I6 engine. In 2001, General Motors resumed production of straight-six engines with the Vortec 4200 dual overhead camshaft petrol engine. This engine was used in various SUV models until 2009. Also,

3740-647: Was introduced in the Dutch Spyker 60 HP racing car in 1903. Straight-six engines increased in popularity in the years after and by 1909, approximately 80 manufacturers were using them (including 62 in the United Kingdom). Prior to the 1950s, V6 engines were rarely used, due to the poorer engine balance of V6 engines compared to straight-six engines. Since the 1980s, however, the shorter length of V6 engines has seen most manufacturers replace straight-six engines with V6 engines. An exception to this trend

3808-527: Was powered by a 1.3-1.6 L overhead camshaft straight-six petrol engine. The 1931–1932 MG F-type tourers, 1932–1934 MG K-type sports cars, and 1934–1936 MG N-type sports cars were powered by an overhead camshaft straight-six petrol engine. During the mid-1930s, the Riley MPH sports car and Riley Kestrel 6 saloon were produced in small numbers and were powered by dual overhead camshaft straight-six petrol engine. The 1947 Bristol 400 luxury car

3876-613: Was powered by an overhead valve straight-six petrol engine based on the design of the BMW M328 engine. This engine remained in use until the Bristol 406 was discontinued in 1961. The dual overhead camshaft Jaguar XK6 engine petrol engine was produced from 1948 to 1992 in the Jaguar XK120 sports car. Introduced as a 3.4 L, it was used in passenger and racing cars, produced in displacements of 2.4 to 4.2 L. The XK6 engine

3944-573: Was powered by the Daewoo XK6 straight-six petrol engine, which is one of the few straight-six engines to be used in a transverse engine front-wheel drive car. From the 1950s to the 2010s, many cars produced in Australia were powered by a straight-six engine. Holden's first car, the 1948 Holden 48-215 sedan, was powered by the Holden 'grey' motor , an overhead valve petrol engine. This engine

4012-419: Was replaced by Chevrolet's straight-six engine and Buick's V6 engine. a The overhead valve Buick Straight-6 petrol engine was introduced in the 1914 Buick Six luxury car and was produced until 1930. Buick did not make another six-cylinder engine until they introduced a V6 engine in 1962. The 1916 through 1926 Hudson Super Six was powered by a 289 cu in (4.7 L) straight-six petrol engine. This

4080-605: Was replaced by the Austin D-Series engine , an overhead valve engine initially designed for trucks, which was used in passenger cars from 1947 until 1968 (along with several Jensen Motors models from 1946 to 1962). The overhead valve BMC C-Series was used by various BMC brands from 1954 to 1971, followed by the 2.2 L version of the BMC E-Series overhead camshaft engine, which was produced from 1970 until 1982. The 1930–1936 Wolseley Hornet six lightweight car

4148-532: Was replaced by the Holden 'red' motor , which was produced from 1963 to 1980 and in turn followed by the 1980–1984 Holden 'blue' motor . The final locally produced Holden straight-six was the 1984–1986 Holden 'black' motor , which was initially replaced by the Japanese-built Nissan RB30 engine before Holden switched to a locally-built V6 engine. Ford produced straight-six engines for the longest time of any Australian manufacturer. In 1960,

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4216-479: Was replaced by the 1906–1926 Rolls-Royce Silver Ghost , which switched to a flathead (side-valve) design for its straight-six engine. In 1906, the Standard Six luxury car was introduced, powered by a 20 hp (15 kW; 20 PS) I6 petrol engine. Standard's engines were also used in several cars built by SS Cars and its successor Jaguar, such as the 1932 SS 1 sports car, the 1936 SS Jaguar 100 and

4284-467: Was rugged, reliable, and became noted for longevity. A turbocharged racing engine based on the AMC Straight-6 engine block produced 875 hp (652 kW) and competed in the 1978 Indianapolis 500 race. The final application for the AMC Straight-6 engine was the 2006 Jeep Wrangler (TJ) , after which a V6 replaced it. The 1962 through 1973 Jeep Tornado overhead camshaft straight-six engine

4352-498: Was switched to AMC's facility in Kenosha, Wisconsin . Following slow sales of the 1955 model year, AMC turned Hudson styling to Richard Arbib , who created a unique look for the Hudson line based on what he termed "V-Line" styling. The new design did not attract customers to Hudson, and production fell even further. In its final year, the Hudson brand was pared down to a single model, the Hudson Hornet , available in two trim levels,

4420-411: Was the first automaker to introduce foam seat cushions), door-step courtesy lights, rear center armrest (sedans), and gold etched lettering on the dashboard panel. The priority was building cars following the war rather than introducing annual design changes for 1947 since Hudson was in the process of developing a completely new model. Production of the 1947 Hudson Commodore Eight increased to 12,593 from

4488-514: Was the only convertible. McQueen upgraded the standard I6 with a 308 cu in (5.0 L) Twin-H version from a Hudson Hornet. Straight-six engine The straight-six engine (also referred to as an inline-six engine ; abbreviated I6 or L6) is a piston engine with six cylinders arranged in a straight line along the crankshaft . A straight-six engine has perfect primary and secondary engine balance , resulting in fewer vibrations than other designs of six or fewer cylinders. Until

4556-575: Was used in several of the company's sports cars. The 1906–1908 Ford Model K luxury car used a 405 cu in (6.6 L) straight-six petrol engine and was the only Ford six-cylinder passenger car engine until the 1940s. The Ford flathead I6 was produced from 1941 until 1951, followed by the Ford OHV I6 overhead valve engine from 1952 through 1964, then the Ford Thriftpower Six overhead valve engine from 1960 until 1982, and

4624-742: Was used in the Ford Zephyr executive car and several other models from 1951 to 1966. The Triumph I6 overhead valve straight-six petrol engine was produced from 1960 to 1977 and debuted in the Standard Vanguard Six sports saloon. The Leyland PE166 engine was loosely based on the Triumph design and was produced from 1977 to 1986. The 1972–1977 TVR 2500M sports car was powered by the Triumph I6 engine. Then, from 1999 to 2007, TVR's own TVR Speed Six dual overhead camshaft engine

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