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The Vortec 5300, or LM7/L59/LM4, is a V8 truck engine. It is a longer-stroked by 9 mm (0.35 in) version of the Vortec 4800 and replaced the L31. L59 denoted a flexible-fuel version of the standard-fuel LM7 engine. Displacement is 5,327 cc (5.3 L; 325.1 cu in) from a bore and stroke of 96 mm × 92 mm (3.78 in × 3.62 in).
Later models introduced another version of the Vortec 5.3-liter V8 as the engine is now capable of running on E85 ethanol. On normal gasoline, it produces 320 hp (239 kW) and 335 lb⋅ft (454 N⋅m) of torque, whereas on E85, its output rises to 326 hp (243 kW) and 348 lb⋅ft (472 N⋅m) of torque, up from 310 hp (231 kW) and 335 lb⋅ft (454 ...
The engine block and cylinder heads were cast at Saginaw Metal Casting Operations in Saginaw, Michigan. The LT1 and LT2 engines [12] are distinct from subsequent LS-based small-block engines. The Generation II small-block engine is largely an improved version of the Generation I, having many interchangeable parts and dimensions.
The engine was also used in the Buick Rainier, Saab 9-7X, and Isuzu Ascender. It displaces 4.2 L (4,160 cc; 253.9 cu in), with a 93 mm × 102 mm (3.66 in × 4.02 in) bore and stroke. It has four valves per cylinder, utilizes dual-overhead cams ( DOHC ) design, and features variable valve timing on the exhaust cam, a first for GM inline engines.
This was the same engine used for the second-generation Cadillac Escalade and GMC Yukon Denali. Chevrolet and GMC advertised this engine as the "Vortec High Output" and later as the "VortecMAX," while Cadillac called it the "HO 6000." The SS came with a standard all-wheel drive setup with a 4.10 final drive gear ratio and 4-wheel disc brakes.
The 4.2-liter V8 engine (GM RPO code LTA) is an eight-cylinder, dual overhead cam (DOHC) twin turbo engine produced by General Motors specifically for use in Cadillac luxury vehicles. The engine is the result of a new clean-sheet engine design as well as Cadillac's first twin-turbo V8 engine. It first launched with the 2019 Cadillac CT6. [10]
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