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The Cadillac STS-V is a high-performance executive car of the V-Series introduced at the 2005 Detroit Auto Show, and was available for sale in late 2005. The STS-V uses a supercharged 4.4 L version of the Northstar V8, producing 469 hp (350 kW) and 439 lb⋅ft (595 N⋅m).
The Northstar engine is a family of high-performance 90° V engines produced by General Motors between 1993 and 2011. Regarded as GM's most technically complex engine, the original double overhead cam, four valve per cylinder, aluminum block/aluminum head V8 design was developed by Oldsmobile R&D, [citation needed] but is most associated with Cadillac's Northstar series.
For example, while the Cadillac Seville initially used a variant of the 350 cu in (5.7 L) Oldsmobile V8, Cadillac also began work on its own proprietary engines. [ 6 ] [ 7 ] In 1977, Cadillac introduced a new 425 cu in (7.0 L) V8, based on the architecture of the 472, but with a smaller, 4.082 in (103.7 mm) bore and the same 4.06 in (103.1 mm ...
The 4T80-E is a hydramatic transmission and was developed for use with V8 front-wheel-drive cars, and at the time exclusively the Cadillac Northstar engine. [3] It was designed with extreme power handling capabilities at the time. The 4T80-E debuted in the Cadillac Allanté in 1993 along with the Northstar Double Overhead Camshaft (DOHC) V8.
Cadillac introduced the Seville Touring Sedan (STS) trim level this model year, equipped with the FE2 touring suspension, 15-inch alloy wheels, upgraded springs, a rear sway bar, a 15.6:1 steering ratio for enhanced handling, grille mounted emblem, cloisonne trunk lock cover, and a four-passenger interior. Seville Touring Sedan production ...
Cadillac XLR-V in 2005. The first V-series model of the Cadillac family was the CTS, which was built on GM Sigma Platform like the core model but given the GM LS engine from the C5-generation Corvette Z06, along with its a six-speed Tremec manual transmission.
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The 6L 50 debuted for the 2007 model year on the V8-powered versions of the Cadillac STS sedan and Cadillac SRX crossover, and replaces the 5L40-E and 5L50 in GM's lineup. The 6L 45 version is used in certain BMW vehicles and the Cadillac ATS, as part of either rear-wheel drive and all-wheel drive powertrains.