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The C3 fourteen-year run shows an extreme contrast. The list price for the Corvette in 1968 was $4,663 (~$40,856 in 2023). By 1982 the base price had increased to $18,290 (~$48,871 in 2023). In 1968 there were six engines, two small-block V8s and four big-block V8s. By 1982 there was only one small block V8 engine available.
The engine was available through mid-1965, when it was replaced by the 396 cu in (6.5 L) 375 hp (280 kW) Mark IV big-block engine. In addition, a 340 hp (254 kW) version of the 409 engine was available from 1963 to 1965, with a single 4-barrel cast iron intake mounting a Rochester 4GC square-bore carburetor, and a hydraulic-lifter camshaft.
This was so named because it began with Chevrolet's V8 engines. 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 in³ (1980-1983).
This engine has a large iron block, with an alloy head and has a pushrod design. They have non-crossflow heads and inbuilt manifolds. These engines are a common swap given the ease of swapping, with mounts, sumps, transmissions etc. crossing over with the stock engine. The CF6 has been succeeded by the SOHC Intech and the DOHC Barra engines.
Note: this is commonly called the Ford Small-block V8 pattern, though it is used in some "big block"-sized V8's as well as some V6's and I6's. 200 I6 1978-1983 only, partial (4 of 6 bolts) pattern. 250 I6 (except Australian 250/4.1) 255 V8; 289 V8 - (made after August 3, 1964) - had 6 bolts holding bellhousing to block; 302 Cleveland (Australia)
LS7 can also refer to a 454 over-the-counter 460+ hp high compression engine Chevrolet Big-Block engine of the 1970s 7.0L LS7 engine in a 2006 Chevrolet Corvette Z06. The LS7 is a 7,011 cc (7.0 L; 427.8 cu in) engine, based on the Gen IV architecture.
Most small block V8 powered cars of the 1960s and 1970s in the North American market; 1966–1996 C6. Most big-block V8 powered cars/trucks of the 1960s and 1970s in the North American market, All Fseries trucks without O/D, 80 thru 96 (97 For F250HD, F350, and F-Superduty models) 1974–1989 C3—Light-duty, smaller than the C4
No gas lid emblem was used. Aluminum front grills (all-black), dual exhaust resonators added, revised radiator cooling and interior a/c ducts, and integrated seat/shoulder belts in the coupe. Last year for a true dual exhaust system, last year for the 454 big-block engine in a Corvette, which was the 270 hp LS4. 1975: 38,465
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