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After the 1974 SD455 was dropped the 1975 Firebird's top performance engine was an 'L78' Pontiac 400 cu in (6.6 L). Pontiac still offered the regular 455 (RPO L75) in its full sized cars, and after a negative public reaction for dropping the 455 engine, it was re-introduced mid-year as an available option for the 1975 Pontiac Trans Am.
The standard Hurst/Olds engine was the L75 455 cubic-inch Rocket V8 rated at 250 net horsepower (U in VIN). Optional at extra cost was the W-30 option with the L77 455, a blueprinted engine rated at 300 net horsepower (X in VIN). Both engines were mated to a Turbo Hydra-matic 400 transmission with console-mounted Hurst Dual-Gate shifter.
The J-2 engine also had a slightly thinner head gasket, raising compression to 10.0:1. It was advertised with gross power and torque ratings of 312 hp (233 kW) at 4600 rpm and 415 lb⋅ft (563 N⋅m) at 2800 rpm. Oldsmobile charged $83 for the J-2 option with the three-speed manual (or in the 98), [7] $314 with the automatic. [8]
No four-speed manual transmission cars were produced. Performance tests from 1977 estimated 0-60 mph (97 km/h) time for the Can Am with the Pontiac engine at about 10 seconds, about the same as the previous year's Le Mans with the 455, and a 1 ⁄ 4-mile (0.40 km) time of approximately 17 seconds. It is estimated that 1133 Can Ams were produced ...
Crate engines are often seen as an economical and more reliable solution as opposed to engine overhauls or custom builds. Such engines are built by specialist engine builders, working in clean and well-equipped workshops, rather than general purpose repair garages. Crate engines may be either brand new, or substantially rebuilt.
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The 442 definition was changed to "4" hundred CID V8 engine, "4"-barrel carburetor, and "2" exhaust pipes, and was named by "Car Craft Nationals" as the "top car of 1965". In 1968 the 442 became its own model and got a larger, 455 CID (7.5 L), V8 engine in 1970. Oldsmobile Cutlass (1961–1999) – mid-size car. Oldsmobile's best seller in the ...
The engines purchased by AMC continued to use the Chevrolet V8 bellhousing pattern. The four-cylinder engine was discontinued from AMC's rear-wheel drive models after 1982. During 1983, the all-wheel drive Eagle base engine switched from the Iron Duke to a new, AMC-developed 150 cu in (2.5 L) four-cylinder. The 1980 through 1983 Jeep CJs were ...