Chevrolet Bel Air Generation 3 427/430 Impala Sport Coupe Z11 1963
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Car producer : |
Chevrolet |
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Model: |
Bel Air Generation 3 427/430 Impala Sport Coupe Z11 1963 |
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Year: |
1961-1964 |
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Type: |
Coupe |
The 1963 Impala featured rectilinear styling with an engine-turned aluminum rear taillight panel surrounded by a chrome border on SS models. Engine choice was similar to 1962, with the small-block 283-and-327-cubic-inch (4.6 and 5.4 L) V8s most popular. The Sport Sedan featured a new, creased roof line. A new "coved" instrument panel with simple indicator lights for hot and cold engine conditions. An optional factory tachometer was built into the dashboard, just above the steering wheel; it was rarely ordered.
A special 427-cubic-inch (7.0 L) version of the 409 engine was used in the 1963 Chevrolet Impala Sport Coupe, ordered under Chevrolet Regular Production Option (RPO) Z11. This was a special package created for drag racers, as well as NASCAR, and it consisted of a 427 cubic inch engine with aluminum body parts, and a cowl-induction air intake system. The aluminum body parts were fabricated in Flint, Michigan at the facility now known as GM Flint Metal Center. Unlike the later, second-generation 427, it was based on the W-series 409 engine, but with a longer 3.65 in (93 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 430 hp (320 kW) and 575 lb·ft (780 N·m). 50 RPO Z11 cars were produced at the Flint GM plant.
