For competition, race customers had a range of options available to them including the N03 36-Gallon Fuel Tank, closer rear axle ratios and the C48 Heater/Defroster Delete (-100). Most cars equipped like this came with either L78 or the L84 with Ram-Jet Fuel Injection.
For more than a decade after the Corvette's initial release it had small-block power. In fact, the 265 cubic-inch V8’s 1955 introduction was largely responsible for the Corvette’s validation as a sporty, performance-minded vehicle. However, by the mid-1960s, those behind the scenes at Chevrolet had begun developing a new powerplant. This engine would become the first big-block V8 to be used in Corvette production.