Pontiac GTO specs: 1973

Pontiac GTO specs: 1973

The 1973 GTO was a big change (literally) from the ’72 Goat. The new colonnade styling was safer, but also was heavier by about 200 lbs. Forty-plus years later, this GTO is just starting to get the respect it deserves— after all how wrong can you be for still having 455 cubes available underhood during the Smog-Era.

pontiac gto 1973

Platform: A-body

Trim Levels:

  • base- The GTO itself is technically an option package for the LeMans coupe
  • Sport Coupe- GTO equipment on top of the LeMans Sport Coupe
  • Body Styles:

  • coupe
  • sport coupe (louvered quarter glass, to name the obvious)
  • Wheelbase: 112.0″

    F/R Track Width: 61.5″/60.7″

    Overall Length: 207.4″

    Overall Width: 77.7″

    Overall Height: 52.9″

    Turning Circle: not published

    Drag Coefficient: not published

    Shipping Weight: 3810 lbs.

    Available Engines:

  • 400 CID 4bbl V8
  • 455 CID 4bbl V8
  • Available Transmissions:

  • 3-SPEED MUNCIE M13 MANUAL (400 only)
  • 4-SPEED MUNCIE M20 MANUAL (400 only)
  • 3-SPEED TH400 AUTOMATIC (400 & 455)
  • Axle Ratio:

  • 3.08
  • 3.23
  • 3.42
  • Fuel Capacity: 21.5 Gallons

    Fuel Economy: not published

    Head Room F/R: 37.8″/36.9″

    Leg Room F/R: 42.4″/33.7″

    Shoulder Room F/R: 59.6″/57.5″

    Hip Room F/R: 56.0″/52.9″

    Tires: G60-15

    Wheels: 15.0″ x 7.0″

    Production Totals: 4806 units

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