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The Gen IV LS9 is a supercharged 6,162 cc (6.2 L; 376.0 cu in) engine, based on the LS3; the LS7 block was not used because of the higher cylinder pressures created by the supercharger requiring the thicker cylinder walls of the LS3. It has a bore and stroke of 103.25 mm × 92 mm (4.065 in × 3.622 in).
This block is one of three displacements, 302/327/350, that underwent a crankshaft bearing diameter transformation for 1968 when the rod-journal size was increased from the 2 in (50.8 mm) diameter small-journal to a 2.1 in (53.3 mm) large-journal and a main-journal size that was increased from 2.3 in (58.4 mm) to 2.45 in (62.2 mm).
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General Motors officially introduced the Corvette ZR1 on December 19, giving a press release and photographs of the car. GM confirmed a supercharged 6.2 L LS9 V8 having a power output of 638 hp (647 PS; 476 kW) at 6,500 rpm and 604 lb⋅ft (819 N⋅m) of torque at 3,800 rpm. The ZR1 is engineered to attain speeds up to 205 mph (330 km/h).
Performance modifications included a "hot" camshaft (in reality, just a camshaft used in various applications during the '70s with .440"/.440" lift and 196°/208° duration at .050"), stiffer valve springs, a larger vibration damper (same as all '73-'79 350s, 403s, and 455s), a Y-pipe dual-outlet exhaust system, and richer secondary metering ...
The LS9 was the sole self-launching glider developed at Rolladen-Schneider. The prototype first flew in 1995, powered by a Rotax 535 two-stroke engine. Production of this engine was discontinued by Rotax, putting the LS9 project on hold pending the development of a suitable engine.
The Pontiac Astre is a subcompact automobile that was marketed by Pontiac as a rebadged variant of the Chevrolet Vega.Initially marketed in Canada for model years 1973–1974, the Astre debuted in the U.S. for the 1975 model year, competing with other domestic and foreign subcompacts that included the Mercury Bobcat, Volkswagen Rabbit, and Toyota Corolla.
The "racy" ornament "was a sexy woman leaning into the future, bust down, and pointing the way." [ 27 ] The standard engines were increased with manual transmission cars receiving a 184 cu in (3.0 L) I6 producing 85 hp (63 kW; 86 PS), while a 90 hp (67 kW; 91 PS) 195.6 cu in (3.2 L) I6 powered cars with the optional " Hydra-Matic " automatic ...