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The first iteration of the W-series engine was the 1958 "Turbo-Thrust" 348-cubic-inch (5.7 L), originally intended for use in Chevrolet trucks but also introduced in the larger, heavier 1958 passenger car line. Bore and stroke was 4 + 1 ⁄ 8 in × 3 + 1 ⁄ 4 in (104.8 mm × 82.6 mm), resulting in a substantially oversquare design. This engine ...
On C4500/5500s, the 8.1L gasoline V8 returned from the GMT530 generation as the standard engine; the Caterpillar 3116 was replaced by an Isuzu-designed 6.6L Duramax diesel V8. [12] For the C6500 and larger, diesel engines were standard, with an Isuzu-produced Duramax LG4 7.8L I6 as standard, with a 7.2L Caterpillar C7 (a redesigned 3126 ...
The truck was offered as a half-ton 1500 series with a Vortec 5.3L V8 producing 285 hp (216 kW) or as a three-quarter-ton 2500 series with a Vortec 8.1L V8 with 340 hp (253 kW) and the 4L85-E four-speed transmission. The base layout is rear-wheel drive, but there is an available with selectable high/low four-wheel drive. Avalanche 2500 models ...
Vortec 7400, replaced by 8.1L V8 Available only on 3500 vans 496 cu in (8.1 L) V8 Chevrolet Generation VII big-block V8: 2001–2002 (L18) Vortec 8100, replaced by 6.0L V8 Highest-displacement V8 ever factory-offered in a full-size van Available only on 3500 vans Diesel engines (available on heavy-duty 2500 and 3500 series vans only) Engine
The 7.0L V8 was discontinued, leaving the 6.0L V8 as the sole gasoline engine. As part of the 1997 GMT530 revision, the 6.0L V8 was replaced by the Vortec 7.4L V8; in 2001, an all-new 8.1L V8 (one of the largest gasoline engines ever used in a school bus) became the gasoline engine.
Also called the GM small corporate pattern and the S10 pattern. This pattern has a distinctive odd-sided hexagonal shape. Rear wheel drive applications have the starter mounted on the right side of the block (when viewed from the flywheel) and on the opposite side of the block compared to front wheel drive installations.
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Vortec is a trademarked name for a line of gasoline engines for General Motors trucks.The name first appeared in an advertisement for the 1985 model year 4.3 L V6 that used "vortex technology" to create a vortex inside the combustion chamber, creating a better air / fuel atomization. [1]