The General Motors LS-based small-block engines are a family of V8 and V6 engines designed and manufactured by American automotive company General Motors. First introduced in 1997, the family is a continuation of the earlier first- and second-generation Chevrolet small-block engine, of which over 100 million have been produced altogether, and is also considered to be one of the most popular V8 engines ever. Spanning three generations, a new, sixth generation is expected to enter production soon. Various small-block V8s were and still are available as crate engines.
The Chevrolet small-block engine is a series of gasoline-powered V8 automobile engines, produced by the Chevrolet division of General Motors between 1954 and 2003, using the same basic engine block. Referred to as a "small-block" for its size relative to the physically much larger Chevrolet big-block engines, the small-block family spanned from 262 cu in (4.3 L) to 400 cu in (6.6 L) in displacement. Engineer Ed Cole is credited with leading the design for this engine. The engine block and cylinder heads were cast at Saginaw Metal Casting Operations in Saginaw, Michigan.
The Chevrolet Tahoe, and its badge-engineered GMC Yukon counterpart, are full-size SUVs and other trucks from General Motors, offered since 1994 and 1991, respectively. Since 1982, Chevrolet and GMC sold two different-sized SUVs under their "Blazer" and "Jimmy" nameplates, by introducing the smaller S-10 Blazer and GMC S-15 Jimmy for the 1983 model year, below the full-size Blazer and Jimmy models. This situation lasted into the early 1990s. GMC first rebadged the full-size Jimmy as the "Yukon" in 1991. Chevrolet however waited until 1994, when they rebadged the redesigned mid-size S-10 Blazer the "new Blazer," while renaming the full-size Blazer as the "Tahoe." The name Tahoe refers to the rugged and scenic area surrounding Lake Tahoe in the western United States, and was originally used as a trim level on S-10 models. The name Yukon refers to the Yukon territory of northern Canada.
TorqueFlite is the trademarked name of Chrysler Corporation's automatic transmissions, starting with the three-speed unit introduced late in the 1956 model year as a successor to Chrysler's two-speed PowerFlite. In the 1990s, the TorqueFlite name was dropped in favor of alphanumeric designations, although the latest Chrysler eight-speed automatic transmission has revived the name.
Turbo-Hydramatic or Turbo Hydra-Matic is the registered tradename for a family of automatic transmissions developed and produced by General Motors. These transmissions mate a three-element turbine torque converter to a Simpson planetary geartrain, providing three forward speeds plus reverse.
The TREMEC T-5 is a 5-speed manual transmission for longitudinal engine automobiles. It includes one overdrive gear, a lightweight aluminum housing, and adaptability for four wheel drive use. It is currently manufactured by TREMEC.
The 4L80-E is a series of automatic transmissions from General Motors. Designed for longitudinal engine configurations, the series included 4 forward gears. It was the 4-speed electronically commanded evolution of the 3-speed Turbo-Hydramatic 400, first produced in October 1963. 4L80-Es were optioned only in Chevrolet/GMC pickups, vans, and commercial vehicles, and the Hummer H1. It was also adopted by Rolls-Royce in 1991 and modified after extensive testing, and used initially in the Bentley Continental R, and subsequently other Rolls-Royce and Bentley vehicles. The 4L80 and 4L85 were built at Willow Run Transmission in Ypsilanti, Michigan.
The 4T60-E is a series of automatic transmissions from General Motors. Designed for transverse engine configurations, the series includes 4 forward gears. The 4Txx family is an evolution of the original Turbo-Hydramatic 125 transverse automatic introduced in the late 1970s and the Turbo-Hydramatic 440 transmission developed in the mid-1980s.
The F23 is a five-speed manual transmission manufactured by Getrag in Italy. It is designed for transverse engine applications, primarily by General Motors. It can handle torque inputs of over 230 newton-metres (170 lbf⋅ft).
The New Venture Gear 3500, commonly called NV3500, is a 5-speed overdrive manual transmission manufactured by New Venture Gear and used by GM and Dodge in compact and full-size light trucks.
It can be identified by its two-piece aluminum case with integrated bell housing and top-mounted tower shifter.
The New Venture Gear 4500, colloquially known as NV4500, is a 5-speed manual transmission manufactured by New Venture Gear and used in General Motors and Chrysler products from 1991 to 2007.
The AY-6 is a 6-speed manual transmission manufactured by Aisin. It is designed for longitudinal engine applications and can handle up to 345 ft·lbf (468 N·m) of torque.
The General Motors–Detroit Diesel V8 engine is a series of diesel V8 engines first introduced by General Motors for their C/K pickup trucks in 1982. Developed in collaboration with GM subsidiary Detroit Diesel, the engine family was produced by GM through 2002, when it was replaced by the new Duramax line. AM General's subsidiary General Engine Products (GEP) still produces a military variant of this engine for the HMMWV.
The 6L 50 is a 6-speed longitudinally-mounted automatic transmission produced by General Motors. It is very similar in design to the larger GM 6L 80 and 6L 90, and is produced at GM Powertrain plants in Toledo, Ohio; Silao, Guanajuato, Mexico; and by the independent Punch Powerglide company in Strasbourg, France.
Vehicles made by American Motors Corporation (AMC) and Jeep incorporated a variety of transmissions and transfer case systems. This article covers transmissions used in the following vehicle models and years:
The GM 10.5" 14-bolt differential stands as a robust drivetrain component extensively featured in Chevrolet and GMC trucks, SUVs, and vans from 1973 onward, including specific versions of the Cadillac Escalade. Introduced in 1973, this differential employs a full-floating design, boasting a substantial ring gear diameter measuring 10.5 inches. Its nomenclature, "14-bolt," represents the 14 bolts securing the differential cover, although the ring gear itself is fastened by 12 bolts. Notably, the 14-bolt differential gained traction among Jeep Wrangler owners seeking axle replacement options, earning the moniker "corporate" 14-bolt because of its association with GM's corporate structure during the 1970s.
The Chevrolet 90° V6 family of V6 engines began in 1978 with the Chevrolet 200 cu in (3.3 L) as the base engine for the all new 1978 Chevrolet Malibu. The original engine family was phased out in early 2014, with its final use as the 4.3 L (262 cu in) V6 engine used in Chevrolet and GMC trucks and vans. Its phaseout marks the end of an era of Chevrolet small-block engine designs dating back to the 1955 model year. A new Generation V 4.3 L (262 cu in) V6 variant entered production in late 2013, based on the LT1 small block V8 and first used in the 2014 Silverado/Sierra 1500 trucks.
The fourth generation of the C/K series is a range of trucks that was manufactured by General Motors. Marketed by the Chevrolet and GMC brands from the 1988 to the 2002 model years, this is the final generation of the C/K model line. In a branding change, GMC adopted the GMC Sierra nameplate for all its full-size pickup trucks, leaving the C/K nomenclature exclusive to Chevrolet.
The first generation of the Chevrolet Silverado is a series of trucks manufactured by General Motors from 1998 until 2007 under the Chevrolet brand and also as the GMC Sierra. Built on the new GMT800 platform, the Silverado/Sierra 1500 and 2500 pickup trucks were first released in August 1998 as 1999 models. The "classic" light-duty GMT400 C/K trucks were kept in production alongside the new types for the first model year, while the heavy-duty GMT400 pickups were continued until 2000, with the new GMT800 Silverado/Sierra HD released in model year 2001. A 3500 model was added later for 2001, with the introduction of the HD moniker. A refresh for 2003 models was introduced in 2002, bringing slight design changes and an upgrade to the audio and HVAC controls. The 2007 GMT800 trucks, built after the new GMT900 had gone on sale, used the name Classic to denote the difference between the two generations.
The eighth generation, GMT400-based Chevrolet Suburban and its derivatives was introduced in December 1991 for the 1992 model year. The C/K pickup had already switched to the newer platform in 1987 for the 1988 model year. Both 2WD and 4WD models—designated "C" and "K"—were offered, as well as half-ton and three-quarter-ton models.
