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1981, there was only one powerplant available, a 350 cu in (5.7 L) engine that, like the L-48 base engine the previous year, produced 190 hp (142 kW), but was now designated the L81. The motor was certified in all states and available with manual or automatic transmissions. Chrome air cleaner lids and cast magnesium valve covers dressed up all engines. The stainless steel exhaust manifolds and computer control system introduced on the 305 cu in (5.0 L) California engines the previous year were now standard, as was an auxiliary electric engine cooling fan. This, the last C3 available with a manual transmission, so equipped, had a published 0-60 mph in 8.1 seconds. This model year was the first to use a fiberglass rear spring, now a Corvette trademark. The spring saved thirty-six pounds, but was limited to base suspensions with automatic transmission.
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