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A 400 cu in (6.6 L) small-block V8 in a 1975 Avanti II. The 400.92 cu in (6,570 cc) 400 is the only engine in this family; it was introduced in 1970 and produced for ten years. It has a 4.125-inch (104.8 mm) bore and a 3.750-inch (95.25 mm) stroke.
Torque 250 cu in (4.1 L) I6 Chevrolet High Torque engine: 1967-1972 1-bbl 155 hp @ 4200 RPM 235 lb-ft @ 1600 RPM Known as "Turbo-Thrift" in passenger car installations 283 cu in (4.6 L) V8 Chevrolet small-block engine: 1967 175 hp @ 4400 RPM 275 lb-ft @ 2400 RPM 292 cu in (4.8 L) I6 Chevrolet High Torque engine: 1967-1972 1-bbl
The big-block engines initially used a forged crankshaft with a stroke of 3.975" for the 1965-1967 425 and 400 CID versions; starting in 1968, both the 400 cu in (6.6 L) and the 455 cu in (7.5 L) big blocks used a stroke of 4.25 in (108 mm), with crankshaft material changed to cast iron except in a few rare cases.
Chevrolet small-block V8s; GM Vortec 4300 90° V6; GM Iron Duke RWD inline 4 (early RWD Variants, later versions may use a FWD pattern, and have two possible starter locations) Jeep with GM Iron Duke inline 4 2.5L/151 in 3 (1980-1983). These use a Chrysler custom Torqueflite 904 automatic transmission with an integral Chevrolet bellhousing.
The Chevrolet small-block engine refers to one of the several gasoline-powered vehicle engines manufactured by General Motors. These include: The first or second generation of non-LS Chevrolet small-block engines; The third, fourth, or fifth generation of LS-based GM engines; The Chevrolet Gemini small-block engine
There are no manual transmission equipped Trans Ams that came factory with the standard L78 400 motor in 1977–79. The W72 Performance Package also included an upgrade to the rear differential ratio, setting the rear gear ratio to 3.23 for all 1977 and 1979 W72 Firebirds, with the exception being 3.42 for 4-speed equipped W72 Firebirds in 1978 ...
The 49-states' engine line-up was - the standard 145-horsepower 350 two-barrel V8, the optional 175-horsepower 400 four-barrel V8, and the 215-horsepower 454 four-barrel V8. In California, a 155-horsepower 350 four-barrel V8 was standard and the 180-horsepower 400 four-barrel V8 was the only engine option.
The 4-speed manual of the previous generation was carried over (for 3500-series trucks), with GM introducing a 5-speed overdrive manual (for 1500- and 2500-series vehicles). [8] A 4-speed overdrive automatic was an option on all engines (for 1500- and 2500-series vehicles); a 3-speed automatic was also offered (and was the sole automatic for ...