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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 ...
5 Buick Nailhead, Generation 1 pattern. 6 Buick Nailhead, Generation 2 pattern. ... Jeep "Dauntless" Buick engines: the 225 V6 (1967-1974) and 350 V8 (1969-1970)
In 1962 the Wildcat was a Buick Invicta subseries, mating the Invicta's longer full-size two-door hardtop Buick body (known as the "sport coupe", body production code 4647 hardtop only) [2] with a high-performance 325 hp (242 kW) version of the 401 cu in (6.6 L) Nailhead V8, known as the "Wildcat 445" for producing 445 lb⋅ft (603 N⋅m) of torque.
Buick Nailhead V8 The Buick straight-8 engine ( Fireball 8 ) was a straight-eight cylinder automobile engine produced from 1931 to 1953 by the Buick division of General Motors . It replaced the Buick Straight-6 engine across the board in all models on its debut.
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The 250- and 300-horsepower 364-cubic-inch V8s were continued from 1959, but a new no-cost option was a 235-horsepower lower-compression two-barrel version of the 364 with a lower compression ratio to permit use of regular-grade gasoline instead of the premium fuel required with all other Buick engines. [2]
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).
For example, even with the modifications to reduce emissions and increase efficiency, AMC's 401 cu in (6.6 L) engine was among the strongest factory-spec engines available in an American car in 1971, with more horsepower than Pontiac's standard 455 cu in (7.5 L) and Chevrolet's 454 cu in (7.4 L) that powered the Corvette.