Although there was a factory attempt by Triumph to fit a Rover engine, which was pronounced unsuccessful, the decision to go with the Triumph V8 was probably driven more by the wider engineering strategy and by the fact that the Buick's different weight and torque characteristics would have entailed substantial re-engineering of the Stag when it was almost ready to go on sale.

This engine was also available with a 2-barrel carburetor that increased peak power to at 4400 rpm, as well as Buick's 3. 8 L ( 231 cid ) V6 engine rated at at 4000 rpm.

However, the coupes from Buick and Oldsmobile both utilized Buick's 3. 8 liter V6 engine, while Cadillac continued to use their exclusive 4. 1 liter V8.

The standard and only available engine was the 401 cubic-inch Wildcat V8 with four-barrel carburetor, 10. 25 to 1 compression ratio and mated to a two-speed Dynaflow automatic transmission, which was also standard equipment along with power steering and power brakes using Buick's unique finned aluminum brake drums.

All Electras were powered by Buick's 455 in³ ( 7. 5 L ) engine between 1971 and 1976.

The Century remained Buick's performance line, with engine power rising from 200 ( SAE gross ) in 1954, to 236 in 1955, to 255 in 1956, and topping out at 300 from a bored-out engine in 1957-58, the last model years for the full sized Century line.

The base engine was Buick's new 196, introduced specifically for the Century and Regal.

With Buick's 181 cu in ( 3. 0 L ) V6 producing 110 hp ( 82 kW ), the Century T-Type's performance was modest, but the 3. 8 SFI engine, producing 140-150 hp ( 105-112 kW ), offered spirited performance in this comparatively lightweight vehicle.

Starting in 1975, Regal coupes came standard with Buick's resurrected V6 engine previously offered on the Skylark from 1964 to 1967 ; the engine's tooling had been sold to Kaiser Motors for use in Jeep models ( Kaiser was purchased by American Motors in 1970 and Jeep became an AMC division ) and sold back to GM by AMC in 1974.

A downsized Regal appeared for 1978 with Buick's new V6 engine as standard equipment and a new version of the venerable V6 as an option ( which became standard in 1980 ).

The Monza 2 + 2 and Monza Towne Coupe competed with the Ford Mustang II and other sporty coupes. H-body variants Buick Skyhawk and Oldsmobile Starfire were produced using the Monza 2 + 2 body with grill and trim variations and Buick's 3. 8 liter V6 engine.

Replacing the 3. 2 liter V-6 in California and high-altitude areas was Buick's 3. 8 liter ( 231 cid ) 105-hp V-6 engine.

The first engine in this family was introduced in 1961 for the 1962 model year Buick Special with Buick's engine, the first V6 in an American car.

It was replaced the next year with the GS 350 and similar GS California ; these used Buick's small-block engine.

It was reduced to a mere appearance / handling package as the 455 / Stage I options were discontinued and Buick's revived 231 cubic-inch V6 was the standard engine, mated to a standard three-speed manual transmission or optional Turbo Hydra-matic.

Again the car came with Buick's 280 hp 350-4 engine but now it was mated to the new Turbo 350 transmission.

Beginning with the downsized 1977 models and continuing through three subsequent generations of front-drive LeSabres introduced in 1986, 1992 and 2000, Buick's 3. 8-liter ( 231 cubic-inch ) V6 would become the standard engine for most LeSabre models and V8 engines were dropped ( except in station wagons ) after the last of the rear-drive LeSabre sedans and coupes came off the line in 1985.

The ' 76 LeSabre was the only American full-size car with a standard V6 engine, which was Buick's brand-new 3. 8-litre ( 231 CID ) V6 engine.

Mason Motors was a separate venture, a Flint-based automobile engine manufacturer started in 1911, also by A. C. Mason, who first led Buick's engine works in Flint.

Contrary to popular belief, the Terraza was not Buick's first minivan – the GL8 debuted in China in 2000, where it was solely marketed and is still produced and sold today.

The GS features Buick's Interactive Drive Control System with GS mode, a choice of an FGP Germany F40-6 six-speed manual or Aisin AF-40 ( G2 ) six-speed automatic transmission, high performance brakes with Brembo front calipers and high performance strut ( HiPerStrut ) front suspension.

The 400 package also included the more desirable Super Turbine " 400 " three-speed automatic transmission also found in Buick's higher-priced Wildcat, Electra 225 and Riviera models.

As a result, Oldsmobiles and Cadillacs during the downtime were assembled with Buick's Dynaflow transmission, while Pontiacs used Chevrolet's Powerglide, both two-speed torque-converter units.

From 1957 to 1961, Chevrolet also produced the Turboglide, a triple turbine continuously variable automatic transmission with concurrent ratios whose design was similar to that of Buick's Flight Pitch Dynaflow, subsequently called Triple Turbine ( full technical description ).

Introduced to mark Buick's 50th anniversary, the Buick Roadmaster Skylark ( a name previously used by short-lived Hupp for its sporty 1939 Cord Model 810-based Skylark ) was one of three specialty convertibles produced in 1953 by General Motors ; the other two were the Oldsmobile 98 Fiesta and the Cadillac Series 62 Eldorado.

The Chevrolet inline six was replaced by Buick's 231 V6, while the 260 and 350 Rocket V8s were carried over.

Buick won, and the finished design was adapted to a shortened version of Buick's cruciform frame.

The most significant change for 1967 was the adoption of Buick's entirely new V8 of displacement, and of torque to replace the old 425 " nailhead ".

One noteworthy advance was Buick's Max Trac, a traction control system that prevented wheelspin during acceleration on slippery surfaces.

The large General Motors C-body was used to create the 1964 Electra 225, Buick's richest full-size car.

This was Buick's first full-sized station wagon since 1964.

It was usually Buick's lowest-priced model, starting out as a full-size car in 1936 and returning in 1961 ( after a two-year hiatus ) as a mid-size.

In their test that year, Road & Track was impressed with Buick's " practical " new V6, saying it " sounds and performs exactly like the aluminum V8 in most respects.

Century Specials were usually powered by Buick's own 231 V6 ; a V8 ( from either Buick, Olds, or Chevrolet ) was rarely optioned.

Transmissions included a standard three-speed manual with column shift, four-speed manual with floor-mounted Hurst shifter or a two-speed automatic ; the latter was a version of Buick's Super Turbine 300.

) While the Special was powered by Buick's 233 cu in inline-8 was rated at 3200 rpm, Centuries produced between 1936 to 1942 were powered by the 320 in³ producing 165 hp, making them the fastest Buicks of the era and capable of sustained speeds of 95 mph plus, earning the Century the nickname " the banker's hot rod.

The Century was discontinued at the end of the abbreviated 1942 model year, during which total model production only accounted for about ten percent of Buick's total output.

Beginning at this point, Century was a mainstay of Buick's smaller line, along with the new upmarket Regal coupe.

The Regal was most commonly powered by Buick's 350 in³ V8, which was standard equipment on all models in 1973 and 1974 and optional on coupes but remained standard on sedans from 1975 to 1977, and the larger 455 in³ V8 was optional in 1973 and 1974 only.

Grand Prix production set a new record of over 150, 000 units, easily breaking the previous record of over 112, 000 units in 1969, despite intense competition from a similar restyled Chevy Monte Carlo, and " near " personal luxury coupes such as Buick's all-new Century Regal and Oldsmobile's Cutlass Supreme — both of whose styling and appointments were very similar to the GP and Monte, and even shared the same squared-off formal roofline with opera windows-but used the standard A-body coupe body and wheelbase shared with lower-priced models.

When all of GM's intermediate models were redesigned in 1973, the Century name replaced Skylark on Buick's mid-size sedans and wagons and some coupes.

By 1973, THM units had replaced all of GM's other automatic transmissions including Chevrolet's Powerglide, Buick's Super Turbine 300, and Oldsmobile's Jetaway.