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The General Motors LS-based small-block engines are a family of V8 and offshoot V6 engines designed and manufactured by American automotive company General Motors.First introduced in 1997, the family is a continuation of the earlier first- and second-generation Chevrolet small-block engine, of which over 100 million have been produced altogether, [5] and is also considered to be one of the ...
In 1966 the L78 was available exclusively in the intermediate line. For 1967 the engine was additionally available in Chevrolet's new pony car, the Camaro. The following year the motor became available in the compact Chevy II also. For the 1970 model year the 396 was bored 0.03 in (0.76 mm), resulting in a 402 cu in (6.6 L) engine.
The 4.3 L V6 was retained but was only available on the 1500 and light-duty 2500 series. The "Generation III" small-block V8 engines (based on the LS-series engines) were introduced, with the Express and Savana receiving the 5.3 L V8 (on light-duty vans) and the 4.8 L and 6.0 L V8s (on heavy-duty vans). [9]
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.
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.
A 363 hp (271 kW) engine was offered to drag racers. Late in the 1961 sales season the 421 cu in (6.9 L) Super Duty was released for sale as a dealer installed engine. The 1961 models never came from the assembly line with the 421ci engine; instead it was a specialty item installed and sold at the discretion of individual dealers.
The Chevrolet small-block engine is a series of gasoline -powered V8 automobile engines, produced by the Chevrolet division of General Motors between 1954 and 2003, using the same basic engine block. Referred to as a "small-block" for its size relative to the physically much larger Chevrolet big-block engines, the small-block family spanned ...
[8] [9] With a 140 mm (5.5 in) stroke, the engine had a displacement of 6.6 L (6,597 cc (402.6 cu in)) [1] [9] [11] Like the four-cylinder engine, Bentley's six included an overhead camshaft, 4 valves per cylinder, [9] and a single-piece engine block and cylinder head cast in iron, which eliminated the need for a head gasket. [12]