The 427 big block convertible. 390 HP. 460 lb-ft of torque. The first year for a 427 Corvette. Early 427-powered Corvettes, particularly convertibles, offered from 1966 to 1969 are some of the most-coveted and collectable Corvettes ever produced. This example has only 56K original miles. Nassua Blue, white leather, teakwood steering wheel, knock offs, and removeable hard top, matching and a 4 speed!. All numbers matching. Every detail of this car is a 10. NCRS Top Flight level and quality..