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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.
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 ...
The L72 was a 427 cu in (7.0 L) 90° overhead valve V8 big-block engine produced by Chevrolet between 1966 and 1969. Initially rated at 450 horsepower, the rating dropped to 425 hp (317 kW) shortly after its release (although there was no change in power).
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The 427 big-block was enlarged to 454 cu in (7.44 L) with a 390 hp (291 kW; 395 PS) rating. The ZR-1 special package was an option available on the 1970 through 1972 model years, and included the LT-1 engine combined with special racing equipment. Only 53 ZR-1's were built. [45]
Also called the 'Big Doggie', the ZR2 is a concept model based on a C4 Corvette, but with a much larger 7.4 L (454 cu in) big block OHV V8 engine with multi-port fuel injection similar to the tuned port injection found on the 1985–1991 base model and a 6-speed manual transmission.
The 1965 Corvette Sting Ray became ferocious with the mid-year debut of the "Big-Block" 396 cu in (6,490 cc) engine producing 425 hp (317 kW). Ultimately, this spelled the end for the Rochester fuel injection system, as the carbureted 396ci/425hp option cost $292.70 to the fuel injected 327ci/375hp's $538.00.
2015-(current) LT4 - GM Generation V Small-Block – Used in the Z06 Corvette & Cadillac CTS-V & Camaro ZL1 for years 2017–2019. Topics referred to by the same term This disambiguation page lists articles associated with the title GM LT4 engine .
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