Buick Century Custom Coupe specs: 1976-1977

Buick Century Custom Coupe specs: 1976-1977

The coupe version of the Buick Century Custom broke away from the swooping lines of the sedan and station wagon, as well as the previous year’s coupe. This time the overall appearance was boxier and had different lighting arrangements. Like on the base 1976-1977 Century coupes, the ‘Custom’ version had a more aerodynamic nose than the Regal coupe. It did however get to keep the same formal roof that the Regal had, whereas the base Century coupe still had the fastback styling. This allowed t-tops on the option list for the Century Custom Sport Coupe.


Platform: A-body

Trim Levels:

  • base
  • Landau- roof treatment only
  • Body Styles:

  • formal coupe
  • t-top formal coupe
  • Wheelbase: 112.0″

    F/R Track Width: 61.5″/60.7″

    Overall Length: 209.8″

    Overall Width: 76.5″

    Overall Height: 52.7″

    Turning Circle: not published

    Drag Coefficient: not published

    Curb Weight: 3630-3800 lbs.

    Available Engines:

  • 231 CID 2bbl V6
  • 350 CID 2bbl V8
  • 350 CID 4bbl V8
  • Available Transmissions: 3-SPEED TH350 AUTOMATIC

    Axle Ratio:

  • 2.41
  • 2.56
  • 2.73
  • 3.08
  • 3.23
  • Fuel Capacity: 22.0 Gallons

    Fuel Economy: not published

    Head Room F/R: 37.0″/37.1″

    Leg Room F/R: 42.4″/32.9″

    Shoulder Room F/R: 58.8″/58.1″

    Hip Room F/R: 54.9″/52.7″


  • FR78-15
  • GR78-15
  • Wheels: 15.0″ x 6.0″


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