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The standard engine was now Buick's 125 hp (93 kW) 252 cu in (4.1 L) V6, and a new option was an Oldsmobile diesel engine with a mere 105 hp (78 kW) offered through 1985. 1982 also saw the first-ever Riviera convertible, although relatively few were built, owing to a high price - US$23,944 ($78,016 in 2024 dollars [13]). [41]
The 322 Fireball V8 in a 1956 Buick Century. Buick's first generation V8 was offered from 1953 through 1956; it replaced the Buick straight-eight.While officially called the "Fireball V8" [1] by Buick, it became known by enthusiasts as the "Nailhead" for the unusual vertical alignment of its small-sized valves (Originally it was known to hot-rodders as the "nail valve", because the engine's ...
Oldsmobile engineers selected a conventional, though performance-boosted, Olds 425 cu in (7 L) Super Rocket V8 rated at 385 hp (287 kW) and 475 lb⋅ft (644 N⋅m) of torque. It was an increase of 10 hp (7.5 kW) over the Starfire 425, and an increase of 20 hp (15 kW) over the standard 425 engine in the Ninety-Eight. The Toronado intake manifold ...
Turbo-Hydramatic 425 (TH425 or THM 425, [1] later 325) was an automatic transmission developed and produced by General Motors. The THM425 was a derivative of the THM400; most parts directly interchange and some others will interchange with minor modifications. The internal parts spin the opposite direction in the THM425; the helical angle of ...
The T-Type line ended in 1990, as an option on the Buick Electra, and the following year, a new Park Avenue Ultra was introduced with a supercharged engine.The Riviera and Regal also had supercharged engines as an option when they were redesigned in 1995 and 1997, respectively; the current Regal also has a turbocharger as an option, starting with its return to the lineup in 2011, as do the ...
The 425's stroke was lengthened to 4.25 in (108 mm) to achieve 454.6 cu in (7.4 L; 7,450 cc) to create the Rocket 455 for 1968. It kept the retired 425's 4.126 in (104.8 mm) bore to produce between 275 and 400 hp (205 and 298 kW). Initially the paint was red, except for metallic blue in the Toronado applications; 1970-1976 versions were ...
1965 Buick Gran Sport. The 1965 Skylark Gran Sport was the intermediate Buick Skylark with the Gran Sport option added. Although a 300 cubic inches (4.9 litres) V8 was already offered in the Skylark, the Gran Sport had the largest engine permitted by GM - a 401 cubic inches (6.6 litres) Buick V8 (called a 400 by Buick because that was the maximum engine size allowed in intermediate body cars).
The horsepower ratings for 1986 & 1987 were 235 and 245 hp (238 and 248 PS; 175 and 183 kW), respectively. The limited production GNX benefitted from additional factory modifications such as a ceramic turbocharger, more efficient Garrett intercooler, low restriction exhaust system and revised programming which resulted in a 300 hp (304 PS; 224 ...