Base motor on the 1963 Riviera was the 401 cubic-inch Nailhead V8, so named for the unorthodox vertical position of its valves, which resembled large nails. The valves were tiny for an engine of its size, but helped produce lots of low-end power. With a 10.25-1 compression ratio and single 4-barrel carburetor, the 401 motor produced 445 ft-lbs of torque and 325 horsepower.
Needs a new owner to take it to the next levelgive it a detail in the meantime:)
Running great70% restored Two tone Tangerine and Cream coloredGreat classic carAdd it to your collection 4 door coupe power sedan from the 60's WOW!!

Used Year: 1963
VIN (Vehicle Identification Number): 00000 Mileage: 4
Number of Cylinders: 8 Make: BUICK
Transmission: Automatic Model: RIVIERA
Body Type: Coupe Engine: V8
Vehicle Title: Clear Drive Type: RWD
Power Options: Power Windows Fuel Type: Gasoline
Exterior Color: TANGERINE For Sale By: Private Seller
Interior Color: BEIGE