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Unlike the later, second-generation 427, it was based on the W-series 409 engine, but with a longer 3.65 in (92.7 mm) stroke. A high-rise, two-piece aluminum intake manifold and dual Carter AFB carburetors fed a 13.5:1 compression ratio to produce an under-rated SAE gross 430 hp (321 kW) and 575 lb⋅ft (780 N⋅m).
For the 1969 model year the ZL1 option was offered featuring an all-aluminum 427 cu in (7.0 L) big-block engine listed at 430 hp (321 kW) gross , but reported to produce 560 hp (418 kW), that propelled the car through the 1 ⁄ 4 mile (0.40 km) in 10.89 seconds. [47]
In 1966 it was the most powerful engine available in the Corvette, and between 1966 and 1969 was the most powerful engine available in full-sized models. In 1969 the L72 was available via a Central Office Production Order (COPO) in Chevrolet's intermediate and pony car . Today these vehicles - referred to as COPOs - are among the most ...
A total of 201 cars were sold in 1969, 171 with four speed transmissions and 30 with automatic transmissions. Yenko rounded out the visual package with special "Yenko 427" badges, stripes down the sides and hood, and the sYc (Yenko Super Car) on the headrests. According to the Camaro Research Group, standard black interior (code 711) was the ...
1966 Corvette Sting Ray Convertible 1966 Corvette Stingray Coupe 427 in Turquoise Metallic For the 1966 Corvette, the big-block V8 came in two forms: 390 hp (290 kW) on 10.25:1 compression, and 425 bhp via 11:1 compression, larger intake valves, a bigger Holley four-barrel carburetor on an aluminum manifold, mechanical lifters, and four ...
Between 1966 and 1969 the L78 was the highest-horsepower engine available in Chevrolet's intermediate line via a Regular Production Option (RPO). Despite this, in 1969 an L72 427 cu in (7.0 L), 425 hp (317 kW) engine could be ordered in an intermediate via a Central Office Production Order (COPO).
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