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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 ...
A high-performance big block V8 was available in the form of the Turbo-Jet 454, which produced 365 hp in 1971, but power decreased as the years went along. The 1970s marked the impact of the 1973 energy crisis with gasoline prices doubling from 1973 through 1979 and industry car sales plummeted 20 percent between 1973 and 1974. For the first ...
Chevrolet 153 Inline 4 (Chevy II, pre-Iron-Duke - includes the Vortec 3000/181 industrial/marine crate motor) Detroit Diesel V8 6.2L and 6.5L; Duramax V8; Generation III V8s with modifications. These modifications include an additional bolt hole at the top of the pattern, and attachment points for cast oil pans to lower bellhousing extensions ...
Power and performance were reduced. Engine offerings for 1971 included the 250-6, small-block V8s of 307 and 350 cubic inches; and big block V8s of 402 and 454-cubic-inch displacements. Horsepower ratings of those engines for 1971 ranged from 145 for the six to 365 for the RPO LS5 454 – all in gross figures. The LS6 454 V8 was gone forever.
This Corvette is one of just 188 made like it.
Engine offerings were carried over from 1971 with the switch to "net" horsepower ratings including 170 hp (127 kW) for the standard two-barrel 400 cu in (6.6 L) Turbo Fire V8, 210 hp (157 kW) (240 hp (179 kW) with optional dual exhaust) for the four-barrel Turbo Jet 400 big-block V8 and 270 hp (201 kW) for the four-barrel dual exhaust 454 cu in ...
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