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This engine was first offered in 1967 as the top engine option in full-size Pontiacs. It was rated at 376 bhp in 1967 and 390 bhp in 1968 and 1969. For 1967 only Pontiac called this engine the Quadra-Power 428. It was renamed 428 HO for 1968.
So, in addition to building a new Pontiac Engineering building in 1949–1951, the decision to re-direct the V8 to an OHV design delayed its introduction until the 1953 model year, however, the Buick division was introducing its new engine (Nail valve V-8) in 1953 and asked the corporation to hold back or delay Pontiac's V8 introduction until ...
The Pontiac Executive is an automobile model that was produced by Pontiac from 1967 to 1970. [ 1 ] The Executive name replaced Pontiac's long running mid-range Star Chief , beginning for 1966 when all Pontiacs in this range were named Star Chief Executive for this one year only, before the series became simply the Executive for 1967.
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.
Being nearly identical, it too has the distinctive odd-sided hexagonal shape. These engines can be fitted in rear wheel drive vehicles with the right bellhousing and are used in hot rods, kit cars, sand rails and late model engine swaps. All Cadillac Northstar V8s; Oldsmobile Aurora L47 V8; GM 3.5L LX5 "Short Star" V6
The Trophy 4 engine is a short-stroke, 45-degree inclined [4] inline four created from the right bank of the 389 V8 for the debut of the Tempest in 1961. Its 194.43 cu in (3.2 L) displacement is precisely half of the 389, with an identical bore and stroke of 4 + 1 ⁄ 16 in × 3 + 3 ⁄ 4 in (103.2 mm × 95.3 mm).
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]
The designation 2+2 was borrowed from European sports car terminology, for a seating arrangement of two in front plus two in the rear. It was designated officially at Pontiac as a "regular performance" model, [2] a thoroughly confusing designation for a vehicle that was clearly intended to be to the Catalina platform what the GTO was to the A-body Lemans: the standard drivetrain was a 2-barrel ...