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The Generation III 5.7L (LS1 and LS6) engines share little other than similar displacement, external dimensions, and rod bearings, with its predecessor (LT1). It is an all-aluminum 5,665 cc (5.7 L; 345.7 cu in) pushrod engine with a bore and stroke of 99 mm × 92 mm (3.898 in × 3.622 in). [44]
Bore and stroke were 3.736 in × 3.48 in (94.9 mm × 88.4 mm), using the 350's crankshaft throw. This new engine family would provide better gas economy than the 350, share its basic architecture and many parts with the 350 (thus reducing production costs), and provide customers with more horsepower and torque than Chevrolet's 1970s-era inline ...
The LE2 is the direct-injection 1.4 L turbocharged variant of the SGE, with a 74 mm × 81.3 mm (2.91 in × 3.20 in) bore and stroke for a total capacity of 1,399 cc (1.4 L). Compression ratio is 10.0:1 and the engine can run on regular grade gasoline. The LE2 is also paired with a start-stop system in some vehicles.
The 200 cu in (3.3 L) used a unique 3.5-by-3.48-inch (88.9 mm × 88.4 mm) bore and stroke (the Chevrolet 305 and 350 cu in (5.0 and 5.7 L) V8 engines shared the same stroke dimension). These bore and stroke dimensions were later used by the 267 cu in (4.4 L) V8 Chevrolet engine.
The GM Ecotec engine, also known by its codename L850, is a family of all-aluminium inline-four engines, displacing between 1.2 and 2.5 litres.Confusingly, the Ecotec name was also applied to both the Buick V6 Engine when used in Holden Vehicles, as well as the final DOHC derivatives of the previous GM Family II engine; the architecture was substantially re-engineered for this new Ecotec ...
An engine is described as oversquare or short-stroke if its cylinders have a greater bore diameter than its stroke length, giving a bore/stroke ratio greater than 1:1. An oversquare engine allows for more and larger valves in the head of the cylinder, higher possible rpm by lowering maximum piston speed, and lower crank stress due to the lower ...
The bore was increased to 3.75 in (95.25 mm), and stroke increased to 3.4 in (86.4 mm), increasing displacement to 225.3 cu in (3.7 L; 3,692 cc). Since the engine was similar to the popular small-block Buick V8—now with a cast-iron block and displacement of 300 cu in (4.9 L), the engine was made cheaply at the same factory with much of the ...
For example, a piston in an automobile engine which has a stroke of 90 mm will have a mean speed at 3000 rpm of 2 * (90 / 1000) * 3000 / 60 = 9 m/s. The 5.2-liter V10 that debuted in the 2009 Audi R8 has the highest mean piston speed for any production car (26.9 m/s) thanks to its 92.8 mm stroke and 8700-rpm redline.
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