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The Pontiac Grand Ville is a full-size car that was a sub-series trim package for the Pontiac Bonneville from 1971 to 1975, which had served as Pontiac's top-trim model since 1958 while remaining below the top level Pontiac Grand Prix. [2] The Bonneville name remained but was now downgraded, and in effect replaced the Pontiac Executive. The ...
Pontiac differed from other GM Divisions and most other manufacturers in producing only a single sized V8 casting, rather than adding a larger big block to its line-up. The external dimensions of all their V8s, from 326–455 cu in (5.3–7.5 L) were the same. Engine displacement is a function of bore and stroke.
In 1973 all full-size Pontiac models were given a 124-inch wheelbase before being downsized for the 1977 model year. While the Bonneville remained for 1976, 1975 was the last year for the Grand Ville in both the U.S. and Canada, with the Bonneville Brougham replacing the Grand Ville in 1976.
The Pontiac Bonneville is a model line of full-size or mid-size FR (until 1987) or FF cars manufactured and marketed by Pontiac from 1957 until 2005, with a hiatus for model years 1982-1986.
The GM B platform was introduced in 1926 with the Buick Master Six, and the Oldsmobile Model 30, and had at least 12 major re-engineering and restyling efforts, for the 1937, 1939, 1941, 1949, 1954, 1957, 1959, 1961, 1965, 1971, 1977, and 1991 model years; along with interim styling changes for 1942, 1969, and 1980 that included new sheetmetal and revised rooflines.
In Canada, Pontiac continued to use the Grand LeMans name for the G-body Bonneville through the 1983 model year. As part of the model revision, the previous Catalina/Bonneville full-size line was replaced by the Pontiac Parisienne (the nameplate used for the Bonneville by GM Canada), adopting a minor styling revision.
In mid-1971 Pontiac introduced the compact, budget-priced Ventura II (based on the third generation Chevrolet Nova). This same year, Pontiac completely revamped its full-size car lineup. The flagship Bonneville was replaced with the more opulent Grand Ville, while a new generation of full-size Safari station wagons was introduced.
With a finished weight of 36 pounds (16 kg), the block weighs 51 pounds (23 kg) less than the cast-iron block in the Chevy II 153 cu in (2.5 L) inline-4. Plating the piston skirts was necessary to put a hard iron skirt surface opposite the silicon of the block to prevent scuffing. The plating was a four layer electro-plating process.