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1978 brought a downsizing of the Grand Prix and the other A-bodies. The 1978 GP was about 1 ft (0.3 m) shorter and 600 lb (270 kg) lighter than the 1977 model with an overall length of 200 in (5,100 mm) and a 108 in (2,700 mm) wheelbase. For the first time in Grand Prix history, a V8 engine was not standard equipment.
There was a minor exterior refresh and a new PJ model for 1983, followed by a name change for the LJ and SJ to LE and SE, respectively, for the 1984 model year. Available engines were a 2.5 L Iron Duke 4-cylinder , carried over from the previous Phoenix, and a new 2.8 L LE2 V6, both of which were mated to a standard 4-speed manual transmission ...
A 390 hp 428 V8 in a 1969 Grand Prix SJ. In 1967 the 421 was enlarged to 426.61 cu in (7.0 L) by increasing its bore to 4.12 in (104.6 mm). Both Chevy and Ford had 427 cu in performance engines, so Pontiac simply referred to its 427 as a 428 to one-up them. It retained the 421's 4 in (101.6 mm) stroke and 3 + 1 ⁄ 4 in (82.6 mm) main journal.
In 1978, the Le Mans and other GM mid-sized cars were considerably downsized and lost some 600-800 lb. Pontiac's engines were also downsized, with the standard engine being the Buick 3.8 L 231 ci V6, Pontiac 265 ci V8, or optional Pontiac 4.9 L 301 ci V8 for 1978, (a Chevy 305 ci V8 in California). 1978 also saw Pontiac's 350 ci & 400 ci engine ...
1986.5 Pontiac Grand Prix 2+2 5.0 L (305 in 3) V8; The 1986.5 Grand Prix 2+2 had cosmetic changes which included a NASCAR-qualifying nose cone (also available through GM for installation on any 1981–1987 Grand Prix). There were 17 Grand Prix GTs offered by Myrtle Motors in New York which offered a slightly different look and had some ...
This Grand Marquis measures 229 inches from stem to stern, uses a 460 cubic-inch V-8, and weighs 4400 pounds. That's almost light compared to today's 5900-pound BMW i7 , but it was heavy metal ...
Gunnar Nilsson driving the 78 at the 1977 Monaco Grand Prix Héctor Rebaque's Lotus 78 at the 1979 British Grand Prix, where it was used as a spare car [10] It was obvious that the Lotus 78 had some special feature, as proved by Andretti and Gunnar Nilsson winning the race in Belgium: When the car worked well, it was almost uncatchable. Other ...
This list of 1978 motorsport champions is a list of national or international auto racing series with a Championship decided by the points or positions earned by a driver from multiple races. Dirt oval racing