|
|
The Corvette - 1960 |
The 1960 Corvette was virtually indistinguishable from the 1959, but there were some power increases made to the top two engines. Solid lifters and higher 11.0:1 compression boosted the most potent 283 fuelie to 315 bhp at 6200; a second version with hydraulic lifters for easier maintenance pumped out 275 bhp at 5200 rpm. Because of these gains, the Powerglide automatic transmission was no longer available with the fuel injected engines -- it simply couldn't handle the torque. Carbureted engines remained much the same as before. The tamest was still the 230-bhp unit with single four-barrel carburetor, followed by a dual-quad 245-bhp hydraulic-lifter version and the solid-lifter 270-bhp engine with twin four-barrel carbs.
Despite the shift away from racing in favor of promoting the Corvette as a smooth, no-fuss touring car, there were still plenty of reasonably priced performance options available for 1960. Aside from the 315-bhp engine at $484.20, you could still order Positraction ($43.05) and the four-speed gearbox ($188.30). The metallic brake linings (RPO 687) returned as a $26.90 option. A set of blackwall 6.70 X 15 nylon tires cost only $15.75 (5.50 X 15 whitewalls remained standard). Early in the 1960 model year, Chevy offered cylinder heads cast from a high silicon aluminum alloy as an option for the two fuelie engines. Based on a design that was first tried with the Corvette SS prototype racer from Sebring in 1957, they maintained the stock 11.0:1 compression but featured improved intake and exhaust. The high silicon content prefigured the block construction of the four-cylinder Vega engine of a decade later, which proved to be just as troublesome. The aluminum heads were fine in theory but tended to warp if the engine overheated, and Chevy had quality-control hassles with the castings and the option was quickly withdrawn. Lending credence to the rumors of an all-new Corvette in the offing was the track debut of a dramatic special called Stingray that was being "privately" campaigned by GM design chief Bill Mitchell. The fact that Mitchell had succeeded to that position upon Harley Earl's retirement in 1958 convinced many Corvette watchers that the Stingray was the shape of things to come for America's sports car. In some ways, it was.
Even so, the 1961-62 models are regarded as the best Corvettes since the "classic" 1957. Mitchell executed a tasteful exterior makeover that took a welcome step back from the chrome-laden 1958-60 models. Accompanying this body redesign were assorted mechanical modifications aimed at improved efficiency and higher performance. The result was two years worth of vintage Corvettes that stand as the ultimate expression of the original 1953 concept. |