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The small stroke change of 0.03 in (0.76 mm) was accomplished by moving the piston pin and changing the crankshaft stroke; the rod length did not change. The deck height of the AMC six-cylinder block was increased by 1 ⁄ 8 in (3.2 mm) (half the rod length difference) in 1971 to allow for the longer stroke required for the 258. There are only ...
The 301.6-cubic-inch (4.9 L) GMC inline six was produced from 1952 to 1960, when it was replaced by the V6. It has a square bore/stroke ratio of 4 by 4 inches (101.6 mm × 101.6 mm). This is the largest raised-deck engine. It was originally designed for the GMC military M135 and M211. It was used in military 2 1⁄2 -ton trucks with the ...
The smaller engine, dubbed 3.2 litre, featured a 79.30 mm (3.122 in) stroke and a swept volume of 3,157 cubic centimetres (193 cu in). The larger engine, dubbed 3.9 litre, shared the 99.31 mm (3.910 in) stroke of the previous 4.1 litre engine for a swept volume of 3,949 cubic centimetres (241 cu in).
The compression ratio is the ratio between the volume of the cylinder and combustion chamber in an internal combustion engine at their maximum and minimum values. A fundamental specification for such engines, it can be measured in two different ways. The simpler way is the static compression ratio: the ratio of the volume of the cylinder when ...
Although it shared the same layout and architecture with the 1949-vintage engine, the revised engine had shorter connecting rods and was 1 in (25 mm) lower, 4 in (101.6 mm) narrower, and 1.25 in (32 mm) shorter. The accessories (water pump, power steering pump, distributor) mounted on a die-cast aluminum housing at the front of the engine for ...
The Chrysler 1.8, 2.0, and 2.4 are inline-4 engines designed originally for the Dodge and Plymouth Neon compact car. These engines were loosely based on their predecessors, the Chrysler 2.2 & 2.5 engine, sharing the same 87.5 mm (3.44 in) bore. The engine was developed by Chrysler with input from the Chrysler-Lamborghini team that developed the ...
The Ford Model A engine was an evolution of the Ford Model T engine, but with double the power. It was developed in secret at Ford's Rouge Plant, in Michigan, and unveiled – with the Ford Model A automobile – December 2, 1927. The first Model A engine was completed earlier, October 20, 1927, and eventually installed in a 1928 Model A Fordor ...
A straight-six engine has perfect primary and secondary engine balance, resulting in fewer vibrations than other designs of six or fewer cylinders. Until the mid-20th century, the straight-six layout was the most common design for engines with six cylinders. However, V6 engines became more common in the 1970s. By the 2000s, V6 engines replaced ...