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A Bose Premium audio system with nine speakers, with tweeters located in the
instrument panel, and Bose Nd next-generation bass performance is standard
Keyless access with push-button starting is standard
Heated seats are standard on 1SB and 1SC trims
Custom stitching in blue, red or yellow is available on 1SC.
A 427 Heritage Package is available and includes a modern rendition of the classic 427
hood stinger stripe and 427 logos sewn into the floor mats.
Corvette 427 performance
The Corvette 427 Convertible Collector Edition is propelled by the LS7 7.0L (427 cubic
inches), which has been used exclusively in the Corvette Z06. It is rated at 505
horsepower (377 kW), with unique features that include a racing-style dry-sump oiling
system, which helps ensure adequate oil pressure during high-load cornering. The
engine also features a durable forged-steel crankshaft, titanium connecting rods, racing-
derived high-flow cylinder heads with titanium intake valves and lightweight four-into-one
headers.
The high-flow exhaust headers discharge into close-coupled catalytic converters and
through two-mode mufflers. The mufflers each feature a vacuum-actuated outlet valve,
which controls exhaust noise during low-load operation but opens for maximum power.
The LS7 is hand-assembled at GM's Performance Build Center in Wixom, Mich., and
incorporates special processes typically seen in racing engines to produce a highly
refined and precise product. Customers can help build the engine that will be installed in
their vehicle with the optional Corvette Engine Build Experience package.
At the rear of the LS7 engine, a single-mass flywheel and lightweight, high-capacity
clutch channel torque to the rear transaxle. The six-speed manual six-speed is
strengthened to handle the LS7's substantial torque load. It also incorporates a pump
that sends transmission fluid to the front radiator for cooling. Upon its return, the fluid
removes additional heat from the differential lube before returning to the transmission.
The six-speed transmission connects to a limited-slip differential, with enlarged ring and
pinion gears. Stronger axle half-shafts with tougher universal joints transmit power to the
rear wheels.
Corvette chassis and suspension
The Corvette 427 Convertible Collector Edition has a hydroformed steel rail backbone
structure, which features cored composite floors, an enclosed center tunnel, rear-
mounted transmission and aluminum cockpit structure. Suspension cradles, control
arms, knuckles, springs, dampers, bushings, stabilizer bars and steering gear deliver low
mass, direct response and great driver feedback. The battery is mounted in the rear of
the vehicle to help optimize the vehicle's weight balance.
The standard Magnetic Selective Ride Control suspension features magneto-rheological
dampers able to detect road surfaces, and adjust the damping rates to those surfaces
almost instantly for optimal ride control. Complementing the suspension system is an
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