Lingenfelter 427 Z06 Corvette. It's a 7.0-liter 'small-block.'

In 1966, Chevrolet dropped a bombshell on the sports-car establishment when it slipped an optional 427-cubic-inch V-8 into the Corvette. The cost of that option, which became known as the "rat motor," was $181 for a 390-hp version and $312 for the 425-hp mill. The 427's combination of small-block "revability" (with redlines as high as 6500 rpm) and classic big-block torque made the 427 the most cherished engine among Corvette fans. After four years, in response to tighter emissions regs, Chevy enlarged the 427 to make the slower-revving, longer-stroke 454. Chevy would never again install a 427 in a Corvette.

Chevy isn't reversing that fateful decision. But the Indiana concocter of cubic inches, John Lingenfelter, recently unveiled his new Corvette engine that has, uh-huh, 427 cubic inches. More...