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The top-of-the-line model produced 283 hp (211 kW; 287 PS), giving it a 1:1 cubic inch to horsepower ratio; [18] this lowered the Corvette's 0–60 mph (0–97 km/h) to 7.2 seconds. [ 27 ] General Motors would produce more powerful and larger displacement iterations of the small-block, until stringent emission regulations in the late 1960s ...
During the latter years of production, 379-and-432-cubic-inch (6.2 and 7.1 L) versions with enlarged crankshaft journals were manufactured as well. GMC produced a 637-cubic-inch (10.4 L) 60° V8 with a single camshaft using the same general layout (bore and stroke) as the 478 V6. The 637 V8 was the largest-displacement production gasoline V8 ...
A high-performance 327 cu in (5.4 L) variant followed, turning out as much as 375 hp (280 kW) (SAE gross power, not SAE net power or the current SAE certified power values) and raising horsepower per cubic inch to 1.15 hp (0.86 kW). From 1954 to 1974, the small-block engine was known as the "Turbo-Fire" or "High Torque" V8.
The Northstar engine is a family of high-performance 90° V engines produced by General Motors between 1993 and 2011. Regarded as GM's most technically complex engine, the original double overhead cam, four valve per cylinder, aluminum block/aluminum head V8 design was developed by Oldsmobile R&D, [citation needed] but is most associated with Cadillac's Northstar series.
The "split-head" six was discontinued by Pontiac at the end of the 1932 model year. Pontiac offered only eight-cylinder engines during 1933 and 1934. GMC also switched to the 200 cubic inch engine in 1929, using it into early in the 1933 model year.
Displacement was increased to 365 cu in (6.0 L) for 1956 by increasing the bore to 4 inches (101.6 mm) while maintaining the 3 + 5 ⁄ 8 in (92.1 mm) stroke. For the three years that the 365 was made, the base versions had a single four-barrel carburetor. The 1956 version produced 285 horsepower.
A 250 cubic-inch inline-6 and two V8 engines were offered. On the 1 ⁄ 2-ton vehicles, a 307 cubic-inch V8 was optional, with a 350 cubic-inch V8 offered as an option on 3 ⁄ 4-ton and 1-ton vans. Alongside a 3-speed manual transmission, the 2-speed Powerglide was offered alongside the 3-speed Turbo-Hydromatic automatic. [1]
A 250-cubic-inch inline-six was the standard engine through 1979. The model line was offered with a 307- (1973 only) and 350-cubic-inch small-block V8s; a 454-cubic-inch big-block V8 was optional in C-series Suburbans. For 1976, the 350 V8 was joined by 305- and 400-cubic-inch V8s; the latter was discontinued for 1981.