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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]
Cadillac began using the nameplates "Eldorado Seville", after the city in southern Spain, and "Eldorado Biarritz" after the luxury seaside resort in southern France, to distinguish between the hardtop and convertible models (respectively) while both were offered, from 1956 through 1960 inclusively. The "Seville" name was dropped when the ...
The engine was bumped to 429 cu in (7.0 L) OHV V8 for 1964. 340 hp (254 kW) was the result. Cadillac's longest, heaviest, richest, and highest priced model was again more conventionally engineered than the other lines in 1965. For example, the new perimeter frame was not in use and neither was the improved automatic transmission.
The Oldsmobile Toronado is a personal luxury car manufactured and marketed by the Oldsmobile division of General Motors from 1966 to 1992 over four generations. The Toronado was noted for its transaxle version of GM's Turbo-Hydramatic transmission, making it the first U.S.-produced front-wheel drive automobile since the demise of the Cord 810/812 in 1937.
This option allowed two stored positions to be recalled at the touch of a button. Also new for 1981 was a digital instrument cluster, shared with the Eldorado. Engine options changed for 1981: the V8 was now equipped with the V8-6-4 variable displacement technology. A carbureted 4.1 L (252 cu in) Buick V6 was added as a credit option. Puncture ...
Being nearly identical, it too has the distinctive odd-sided hexagonal shape. These engines can be fitted in rear wheel drive vehicles with the right bellhousing and are used in hot rods, kit cars, sand rails and late model engine swaps. All Cadillac Northstar V8s; Oldsmobile Aurora L47 V8; GM 3.5L LX5 "Short Star" V6
The Oldsmobile engine block formed the basis of the Repco 3-liter engine used by Brabham to win the 1966 and 1967 Formula One world championships. The early Repco engines produced up to 300 bhp (220 kW), and featured new SOHC cylinder heads and iron cylinder liners. The 1967 and later versions of the Repco engine had proprietary engine blocks.
The THM425 was developed for the 1966 Oldsmobile Toronado and the 1967 Cadillac Eldorado. A lighter-duty transmission known as the THM325 (using components sourced from the THM200) replaced the THM425 in both car lines after the 1978 model year. 1979 and later longitudinal engine front-wheel drive vehicles used the THM325.