By virtue of some of the famed powerplants of the past, classic Chevrolets have maintained a mystique that has grown legendary. Looking back, perhaps no engine combination was more responsible for the legendary status of Chevrolet muscle than the Mark IV big-block. The Chevy big-block was introduced to the public via the Corvette model line, initially as a 396-cid powerplant in 1965, growing to 427 cubes in 1966. The 427 set the performance high watermark for a generation, and that storied past is relived today in the cult status of collectability these original vehicles retain.

By virtue of some of the famed powerplants of the past, classic Chevrolets have maintained a mystique that has grown legendary. Looking back, perhaps no engine combination was more responsible for the legendary status of Chevrolet muscle than the Mark IV big-block. The Chevy big-block was introduced to the public via the Corvette model line, initially as a 396-cid powerplant in 1965, growing to 427 cubes in 1966. The 427 set the performance high watermark for a generation, and that storied past is relived today in the cult status of collectability these original vehicles retain.