This Aluminum V8 BEAT Carroll Shelby's Cobra By 11 SECONDS!

Chevrolet SECRETLY built a monster aluminum V8 that the company itself ordered DESTROYED! Only 12 blocks were ever cast, lettered A through L, with every single bolt safety-wired like an aircraft engine to detect tampering. Weighing just 85 pounds and making 485-550 horsepower, the all-aluminum 377 small-block absolutely DEMOLISHED Carroll Shelby's Cobras at Nassau Speed Week — beating them by 11 SECONDS per lap! Shelby himself admitted: "We were outgunned." But one careless memo from Zora Arkus-Duntov bragging about the win reached GM's 14th floor and killed everything. The story of Corvette's most forbidden engine EVER built!

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