1966 Corvette Big Block Roadster 427 Big Block 425 HP Engine. Engine feels/sounds even more than than 425 horsepower Recent frame off restoration One of the Nicest Real Big Block Cars you will ever see! Side Exhaust Addition makes this sound truly amazing! Knock off Wheels. 3.55 Rear End 984 Sunfire Yellow Beautiful Heads, Intake and Carb Correct 9942 HI PERF block with a blank pad. This car really drives like a well done restoration should. Start, stop, shift is what all cars should do but then there is the Sound!