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For 1969, Chevrolet enlarged the 327 V8 to 350 cubic inches. For 1970, GMC phased its V6 engines out of light trucks, switching entirely to Chevrolet-produced engines. [15] For 1971, the 396 underwent internal revisions and was enlarged to 402 cubic inches. In line with its use in full-size Chevrolet cars, the 402 was labeled as 400 cubic ...
All engines in this family share the same block dimensions and sometimes even the same casting number; the latter meaning engines were of the same block, but with different strokes (e.g., the casting number 3970010 was used by all three engines: 302, 327, and 350). This engine family was updated in 1968 for the use of 2.45 in (62.2 mm) medium ...
In 1976, the standard gasoline engine for the C-10 became a 2.5L inline-four. [4] A four-cylinder diesel (Perkins 4236 3.8L) was introduced for 1978 in the D10 pickup. [4] For 1981, the engine line was reduced to two, with a 4.1L inline-six becoming offered in gasoline and ethanol-fuel versions (C-10 and A-10) and the Perkins 4236 (D10).
For 1975, a 400 cubic-inch V8 was introduced as the largest engine option for K-series trucks, slotted above the 350; [2] in another change, catalytic converters were fitted to all trucks under 6000 lbs GVWR. [2] [7] For 1977, a 305 cubic-inch V8 was introduced for C-series half-ton trucks, expanding the engine range to six.
For 1976, the powertrain line was expanded, with the 292 inline-6 becoming the standard engine in 3 ⁄ 4-ton and 1-ton vans; a 305 V8 replaced the 350 two-barrel in 1 ⁄ 2-ton vans (becoming an option for both 1 ⁄ 2-ton and 3 ⁄ 4-ton vans in 1981) and a 400 cubic-inch V8 became offered in 3 ⁄ 4 and 1-ton vans.
The Chevrolet small-block engine refers to one of the several gasoline-powered vehicle engines manufactured by General Motors. These include: The first or second generation of non-LS Chevrolet small-block engines; The third, fourth, or fifth generation of LS-based GM engines; The Chevrolet Gemini small-block engine
The GMC straight-6 engine was a series of gasoline-powered straight-six engines introduced in the 1939 model year by the GMC Trucks division of General Motors. Prior to the introduction of this new engine design GMC trucks had been powered by straight-six engines designed by the Buick , Pontiac and Oldsmobile divisions of GM.
For 1976, the 350 V8 was joined by 305- and 400-cubic-inch V8s; the latter was discontinued for 1981. For 1980, V8 engines became standard for the model line, with the 305 returning as the standard engine for 1981. For 1982, GM introduced a 6.2L Detroit Diesel V8 as a higher-efficiency alternative to the 454 V8. [52]