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The Chevrolet big-block engine is a series of large-displacement, naturally-aspirated, 90°, overhead valve, gasoline-powered, V8 engines that was developed and have been produced by the Chevrolet Division of General Motors from the late 1950s until present. They have powered countless General Motors products, not just Chevrolets, and have been ...
Chevrolet big-block V8s; 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).
A big-block engine, variants were produced in 305-, 351-, 401-, and 478-cubic-inch (5.0, 5.8, 6.6, and 7.8 liters respectively) displacements, with considerable parts commonality. During the latter years of production, 379-and-432-cubic-inch (6.2 and 7.1 L) versions with enlarged crankshaft journals were manufactured as well.
The block entered production in mid 1965 as the Mark IV 396 cu in (6.5 L) "Turbo-Jet," phasing out the first-generation W-series Big-Block. In its first year the 396 was available as the L78 option in Corvettes and full-sized ( Impala , Bel Air , Biscayne ) models, and as the L37 in the intermediate ( Chevelle ) model.
1961–1980 Buick small block V8 (formed the basis of the 1961-1963 Oldsmobile 215 aluminum V8) (now better known as the Rover V8 and also the Buick-based "Dauntless V8" on Jeeps or the Repco V8 Formula One engine based on the Oldsmobile version) 1965–2009 Chevrolet Big-Block V8 (originally "Turbo-Jet")
Chevrolet big-block V8 1988–1990 L19 230 hp (172 kW) @ 3600 RPM 385 lb⋅ft (522 N⋅m) @ 1600 RPM over 8,500 lbs GVWR 454 SS, 1990 Chevrolet big-block V8 1991–1995 over 8,500 lbs GVWR 1991–1993 255 hp (190 kW) @ 4000 RPM 405 lb⋅ft (549 N⋅m) @ 2400 RPM 454 SS [12] (only 7.4 L V8 for 1500) Chevrolet big-block V8
Chevrolet's second generation big-block, the Mark IV had been introduced in 1965 in two 396 cu in (6.5 L) versions. In 1966 Chevrolet added a 427 cu in (7.0 L) version that was available exclusively in the sports car (Corvette) and full-sized (Impala, Bel Air, Biscayne) lines. While a 396 was still available in full-sized cars, the L72 and the ...
Optional was a four-barrel carbureted version of the 350 V8 rated at 275 gross (200 net with dual exhaust and 175 net with single exhaust) horsepower. The 402 cid big-block engine continued to be optional as the SS 396 but was only available in one horsepower rating, 300 gross (260 net) horsepower, and was not available with cowl induction.