Back in the late '60s, Chevrolet produced an extremely rare, barely-tamed race car disguised a street machine.

The car's all-aluminum 427-cubic-inch V8 is mated ... they won't break the bank, either. The 1969 Chevrolet Corvette was also available with the ZL1 option. If you think the Camaro ZL1 is rare ...

Also in 1969, Chevrolet built two "ZL1" 427 Corvette coupes. The ZL1 engine was essentially an all-aluminum version of the L88, with the aluminum cylinder block and heads offering a tremendous ...