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The Pontiac V8 engine is a family of overhead valve 90° V8 engines manufactured by the Pontiac Division of General Motors Corporation between 1955 and 1981. The engines feature a cast-iron block and head and two valves per cylinder.
At the height of the horsepower era, Pontiac engines reached ratings of 390 hp (291 kW; 395 PS) (SAE gross), though other engines achieved considerably higher outputs. Federal emissions laws eventually brought the horsepower era to a close and resulted in a steady decline for Pontiac's engines. One holdout to this industry-wide slide was the ...
The 410 engine, used in 1966 and 1967 Mercurys (see Ford MEL engine regarding 1958 senior series Edsels), used the same 4.05 in (102.87 mm) bore as the 390 engine, but with the 428's 3.98 in (101.09 mm) stroke, giving a 410.1 cu in (6.7 L) real displacement. The standard 428 crankshaft was used, which meant that the 410, like the 428, used ...
The ten horsepower increase over 1968's engines was due to a different cam and the use of the #48 big valve heads, the same head used on the Ram Air 3 400-cubic inch 366 hp (273 kW) engine and the 428-HO engine at 390 hp (291 kW). The 1969 model year would be the last high-performance version of the Pontiac 350.
The plant ceased production of full-size Pontiacs after the 1980 model year but continued to build mid-size Pontiacs ('81-82 Grand Prix, '81 LeMans, '82 Bonneville G) until being idled on August 6, 1982. [2] Pontiac Assembly used VIN P and from 1965 until 1969 Buick vehicles at the nearby Pontiac Central Assembly VIN V factory. [3]
Pages in category "Pontiac engines" The following 8 pages are in this category, out of 8 total. This list may not reflect recent changes. I. Iron Duke engine; O.