1/10/2024 0 Comments 1969 corvette convThe L88 package included a cast-iron 427 cubic-inch Big Block with forged internals, four-bolt mains, a high-performance solid-lifter cam, a 12.5:1 compression ratio, a Holley 850 CFM carb atop an aluminum intake, and a transistorized ignition. Arkus-Duntov and the Corvette team brought the competition-oriented Chevy Corvette L88 to market in 1967. Chasing the youth market with high-performance, exciting offerings was too alluring and profitable to be stopped by silly corporate rules. Win on Sunday, sell on Monday was still a powerful marketing tool, and one that moved inventory. The five Grand Sports are now the stuff of legend, valued at nearly $10 million. Only five Corvette Grand Sports made it out of Chevy’s back door, far short of homologation numbers. The Grand Sport project was supposed to be a run of 125 Cobra-killing Vettes supplied to individual race teams, but the effort was quashed once GM brass caught wind of the program. Curb weight was a scant 2,150 pounds versus just over 3,000 for the standard Sting Ray. The 377 cubic-inch aluminum-engine Corvette Grand Sports produced almost 500 horsepower, and were skinned with far thinner fiberglass than production cars. In 1963, Zora Arkus-Duntov spearheaded the Chevy Corvette Grand Sport project. In 1960, famed American racer Briggs Cunningham campaigned three Corvettes at the 24 Hours, marking the car’s first appearance at Circuit de la Sarthe. Intended for Le Mans, the Corvette SS never got the chance. The 1957 Corvette SS, with a tubular steel space frame similar to that of the Mercedes-Benz 300 SL, ran at the 1957 12 Hours of Sebring just before GM signed the AMA non-competition agreement. The Chevy Corvette was already a being used in competition, as well as having racing specials fielded.
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