basecoat/clear
coat process, which used an enamel base color coat followed
by a clear top coat. Also, only Bowling Green cars were painted in two-tone
combinations.
Only one engine was offered, the 190-hp version of
the 350 small block, mated to either a four-speed manual gearbox or automatic
transmission. To comply with ever-increasingly stringent emissions regulations,
the 1981 Corvette received GM's new "Computer Command Control," a rudimentary
computerized system that controlled spark advance and fuel mixture to lower
hydrocarbons and other emissions.
To improve fuel mileage, every attempt was made to
improve drivetrain efficiency and lower vehicle weight. To this end, the '81's
automatic transmission featured torque converter clutches for the two top
gears and a plastic transverse rear leaf spring that saved 36 pounds of unsprung
weight on models equipped with base suspension and automatic transmission.
More weight savings were found in
the use of magnesium valve covers and tubular exhaust headers that weighed
less than cast iron exhaust manifolds.